In Rouge's Inside the Pyramid stage, one of the robots you blow up is E-102.
Advanced Eggman race kart
Complete all Eggman's missions with "A" ranks.
Advanced Knuckles race kart
Complete all of Shadow's missions with "A" ranks.
Advanced Shadow race kart
Complete all of Shadow's mission with "A" ranks.
Advanced Sonic race kart
Complete all of Sonic's missions with "A" ranks.
Amy Rose's Theme
To unlock Amy Rose's option's menu theme, win at least two emblems that have to do with the Chao races and everyone's mission emblems They do not have to be "A" ranks. Amy's theme will randomly appear in the black market for 20,000 rings.
Aquatic Mine: Dragon animal
Play the level as Knuckles. Go to level three, and lower the water level with the switch. Next, drop down to level two. Look around until you see the caution sign. Jump over it and drop down the pit behind it. Try not to hit the spring in the pit. Then, go through the short tunnel until you fall in some water. Dive down into it and keep descending. Work your way quickly through the water and underwater tunnels so you do not drown. Near the end of the water there will be a long ascent to the top. Go up as quickly as possible. You will also get Air Necklace the on the way, which allows you breathe underwater. Climb on the walls around you until the Dragon animal is found.
Play the level as Knuckles with Sunglasses, Hammer Gloves, Shovel Claws, and Air Necklace. Work your way around the mine and find all three Chao containers. In the last one is the Dragon. One Chao container is in the highest floor behind a pile of wood. The second is in a tunnel with spiked car. The third is in a room with many ghosts, fire breathing skulls, and falling block (in the rafters). Another Dragon is in the room where the Air Necklace is located, hidden in the upper corner.
Aquatic Mine: Seal animal
As Knuckles, at the beginning of the level, fly over the water to the left then swim all the way down to find a seal.
Aquatic Mines: Air Necklace
Go to the Aquatic Mines level as Knuckles. Find the switch that changes the water level to its third setting. (o do this, make sure it is on the first setting and climb the pole in the center of the room. Then, jump to the pulley taking you above. Go to level 2 of the stage and find the a caution sign. Jump in the pit and keep following the path to the item. The Air Necklace allows you to breathe under water for an infinite amount of time. This is especially helpful in the very last level, where you spend virtually the entire time underwater.
Avoid Chao race losses
If you are racing your Chao and know you will lose, press Start and select "Exit" and it will not be recorded as a loss.
Avoid distance attacks
To avoid getting hit by a distant attack such as Thunder Arrow in treasure hunt mode, dig immediately after the character cries out the attack name or battle cry (for example, when Knuckles yells "Take this!").
Big The Cat picture
Go to the Chao Garden and take any Chao to school. If they are learning drawing, leave your Chao there. When the Chao is done, take it back to the garden and wait until he draws. If he draws Big, it will not be a very good picture but can be recognized as Big The Cat.
Black Chao
To make a black Chao, grab it and keep throwing it to the ground or the walls.
Boost on snowboarding levels
When you are falling to the ground to snowboard, press Left and Right a few times. If you are playing in multi-player mode, you will boost ahead of the other player.
Boss time attack mode
Successfully complete either side story to see all the scenes from the side of the story that you chose or you can play the Bosses that you fought in a time attack mode. To get both the Hero and the Dark modes you have to complete both sides of the game.
Bottomless pit
This only happens if you have the Hero Chao Garden. Go into the Chao lobby, then walk over to the stairs. Try to walk under them. There seems to be an invisible wall at that location. Walk to the left edge of the invisible wall and then, while still hugging the invisible wall, walk to the normal wall. There should be kind of a corner at the invisible wall and the real wall. As Sonic or Shadow, Homing Attack that corner for awhile. You should go through and keep falling until you exit.
Bouncing items
Go into the Dark Chaos Garden and pick up a item that the Chaos's can put on their head. Then, jump on the gravestone to the right of the big tree and drop the item, and jump off. If done correctly, the item should be bouncing up and down on the gravestone.
Cannon's Core: Get through lasers
As Knuckles, you can get through the lasers that block off the rest of Cannon's Core. Instead of going under the water and hitting the time switch, just glide into the lasers then press B. You should go through the lasers. You can also go through the waterfall with Rouge if you rapidly press A and B (not simultaneously).
Change Chao color to white or black with normal egg
After your normal egg hatches, decide if you want the Chao to be white or black. If you want it to be black, get either Sonic, Tails, or Knuckles and use that character to abuse your Chao. It will eventually turn black. If you want it to be white, use Rouge, Shadow, or Eggman and abuse it. Note: Chao will be extremely sad, scream, and run.
Chao band or choir
When one Chao starts to play an instrument or sing, pick up other Chaos and put them next to the singing/playing Chao. It will also start playing. Continue doing this and you will have a band/choir. Note: This works with all activities except for drawing. Some Chao may just sit down to watch and shake their heads to the beat.
Chao expressions
Your Chao's expressions depend on how many seconds you shake the egg before it hatches. About six seconds results in the V face and ten seconds for no expression face. To get the very wide smile you may have to experiment.
Chao in a cage
In the Dark Garden, keep throwing a Chao at the cage and it will eventually go in.
Alternately, jump on the tombstone to the left, then jump into the cage from there. To put a Chao in it, you have to be at the very edge of the cage.
Chao race kart
Complete all of Tails' missions with "A" ranks.
Chao sleeping sitting up
Let a Chao run up to get a fruit. As soon as you hear the sound of it grabbing the fruit, take the fruit away. The Chao should still be eating and after a while a fruit will appear.
Chao status
If your Chao has already evolved and has another tear shaped cocoon around it, it is either being reborn or going to die. If the tear shaped cocoon is gray, the Chao is going to die. If the cocoon is pink, your Chao will be reborn and all stats will be divided by 10.
Chao swimming or flying
To get your Chao to swim, give it lots of animals that can swim. To make them fly, give them some flying type animals and bring them to the tallest cliff. Set it by the edge and he/she will walk off and start flying. Note: It may not fly the first time -- keep trying.
Chao with rainbow wings
Keep giving a Chao all different color Chao Drives. Do this for a while and your Chao should grow either rainbow wings or rainbow arms. If this does not happen, keep trying.
Chaos Chao
In order to acquire the immortal Chaos Chao transform a Chao at least two times. This means that your Chao must create a tear-shaped cocoon around it self twice. After this has been accomplished, give your Chao (hero, neutral, or dark) one of each animal. On the third transformation, your Chao will become a Chaos Chao. Note: This will not work if your Chao dislikes you.
Raise your Chao's stamina to about level 7 to 15 to send him through his first metamorphosis. Leave the Gamecube on overnight while you are in the garden. It is recommended that the Chao be alone in the garden. Then, check your game and he should be a baby which is good. After that, repeat the first metamorphosis process. Once evolved again, leave it on overnight once more. Now that your Chao is a baby again (for the third time), give it one of every animal. Finally give it a Hero Fruit for Hero Chaos Chao, a Dark Fruit for Dark Chaos Chao, and a Chao Fruit for a Light Chaos Chao. Wait for awhile for your well earned Chaos Chao.
Start abusing your Chao with the type of storyline you do not want your Chao to grow up to be. It will transform eventually. Repeat this until it has transformed three times. As you begin the rest of the game, give your Chao each small animal you find and that one Chao. It will turn into a Chaos Chao.
Get a fresh egg (white and blue only). Feed it only Chao Fruits and train it nicely with both sides, Hero and Dark, until it evolves once. It will create a cocoon in the shape of the Chao's head. If done correctly, it will be a baby blue Chao again. Repeat the last step until it evolves for the second time. After it has evolved twice (it should still be blue), give it one of every animal. Then, give it a Chao Fruit for a Neutral Chaos Chao, a Dark Fruit for an Evil Chaos Chao, or a Hero Fruit for an Angel Chaos Chao.
Chaos Drive colors
Yellow: Swim
Green: Run
Red: Power
Purple: Fly
Chaos with items on their head
Give your Chao a skeleton dog. Then, give your Chao a skull, trash bag, pumpkin, etc. After a little while, a "!" will appear above its head and it will put it on. To take it off, attack or jump on your Chao.
City Escape: Disappearing tires
At the end of the level, go over by the recycle bin and touch the stack of tires by just running into it. The tires will sink into the ground.
City Escape: Easy rings and lives
After getting the Mystic Melody, go to the City Escape level. Play the third mission, but do not get the Chao until you have 999 rings and 99 lives. This is useful when you need rings to buy very expensive items. If you just need a certain amount of coins, keep playing this stage until you get that amount.
As Sonic, go past the first point marker. You must have between 60 and 80 rings to get the first extra rings. At the first turn, hit the boost pads, flair flip, and grab the magnetic shield, Then, flair flip up the ramp to get an extra 30 rings. Keep the magnetic shield on until you get to the Gun truck that chases you. Go down in this order: right, then turn left, and run down the path. Get the coins, then turn right at the first turn to get some rings. On the next turn, turn right to get a lot of rings then go left to get all the rings.
City Escape: Finding the lost Chao
You will need the Mystic Melody for Sonic. After you run down the side of the building, there will be bounce springs. Do not go on them. Near the tree is a Mystic Melody platform. Use Mystic Melody and bounce on some springs. Kill some robots to get to the top. If you see an orange pole, go on it and launch yourself up. Go in the room to find the lost Chao.
City Escape: Go up the building
When you are running down the building, you can use the Spin Dash to go up the building.
City Escape: Kill Omochoa
Go to the Omochoa by the pipe. Pick it up, then throw it off the cliff just next to it . It will come back in a short time or not at all.
City Escape: Magic Gloves
Once you get the Fire Somersault Bracelet, return to the first level of Sonic's adventure (City Escape). Go towards the end of the level and look for a spot on the ground composed of four steel crates. Perform the bounce attack on top of them and you will fall into a secret room. Once there, you can bounce and destroy more crates to find the Magic Gloves. They will allow you to turn an enemy into a miniature throwable version. However, you have to get very close, making it not all that useful.
First, get the Bounce Bracelet, then play the City Escape level. Shortly after you run down the building you will notice four steel containers in the ground. Break them with the bounce attack, defeat the three enemies that are down there, then jump over the fence and grab the Magic Glove upgrade. Press X when close to an enemy and magic hands will appear in the action window. You will be able to throw enemies at other enemies.
City Escape: Run on foot
At the start of the City Escape level, instead of landing on the ground with the board, scrape the roads on the board. When on foot run full speed at a wall and get knocked down. Pause game play if you fall after hitting the wall. Choose to restart the level to run on foot and not on the board.
City Escape: Stop on the run down building
Get to the place where you are running down the big building. You must be running on the building, not falling. While you are running down, hold B and you will be in a spinning ball stopped on the building. Note: You can turn around on the building and go upwards.
City Escape: Tires
At the start of the level you will be riding on a snowboard. Then, you will hit a tram before you lose your snowboard. Look closely to see all of the wheels come off. You can also throw them at an enemy.
City Escape: Unicorn animal for Chao
Get all the Chao containers. The third container will have the unicorn inside.
Play the level as Sonic (the first level of the Hero story) and get the three Chao boxes. The first Chao box should have a Chao key in it. It is at the part (to the right) where you go upstairs. The second one should have four animals in it. It is located down a rail where there is a thing that boosts you down the rail and up a ramp at the end of the rail. The third Chao box should have the unicorn in it. It is at the place where you run down the top of a building and bounce. When you bounce, hold Up until you land on a bar and start swinging. While you swing, you will see a red slash of Sonic's Shoes every once in a while. Try to press A when the shoes slash. If done correctly, you will swing off onto another bar and start swinging again. Repeat and you should swing off onto a platform. On the platform is the last Chao box. Repeat to get as many Unicorns as needed. With Unicorns, your Chao will grow a horn in the middle of its forehead, a pony tail, little hooves, pony ears, and some of its body will change colors.
City Escape: Wall jump
When you are on the snowboard, get to the end of that part, but do not go off. Jump over the things that make you go faster. If done correctly, you will be by two grass areas, a bush, and a fence. Use the Bounce Attack on the bush. Then, bounce on the fence and over the wall with the boxes at the end. You will be flying and you can see the level behind you. It takes up to three minutes and you will die. Note: This requires a lot of practice.
Cosmic Wall: Extra life
As Dr. Robotnik. While trying to get up one of the giant holes by jumping from platform to platform, you will see two platforms extremely close together. Shoot all the boxes there to reveal a 1-up item which increases your life bar, so you can sustain more attacks before dying.
Cosmic Wall: Unicorn animal
After you reach the second point marker, hover up to the next platform. Look to your right and you will see another platform with a pyramid on it. Hover over to it. Break the pyramid and play the Mystic Melody at the Ancient Shrine. A spring will appear. Bounce from the spring. Hover up two times more. There will be two springs on the second platform. Bounce on one of them and you will reach a platform with another pyramid. Hover to the left around the building and reach one more platform. Look at the edge and you will see the Unicorn.
Crazy Chao
Have a Dark Chao. When in the Dark Garden give it five Dark Fruits. After that, your Chao will sleep once you whistle. When he gets up, he will have a strange smile and start running around. He will hit other Chaos and knock them down.
Crazy Gadget: End of level
As Sonic, reach the last sequence when you hit the switch before you get the goal to launch the missile. Use the first switch then instead of using the second switch. Use the bounce attack to go higher to the red platform and move to your left. Hit the switch to go down. Step off the purple platform to find the switch. Use the bounce attack to get high enough to reach the gravity switch. Once you do, just jump to hit the switch. The next part is tricky. Use the homing attack to hit the spring near the goal and do not press anything. You should end up back where you started use the first switch to go up. Repeat the procedure, except use the switch that is straight ahead. When you get down, fire the missile to get the goal.
After you go through the door, you will see a gravity switch like all the others in the level. Flip it. You will then be upside down on a purple platform. Follow the path and kill the enemy using the Homing Attack. Keep going forward and you will see a switch that points left. Do not press it -- it is a trap. Instead, go to the rail and you should see a red platform. Jump off and you will land on it. Next, you will see one of those weird blue robots, except this one shoots in every direction. Use the Homing Attack and it will die. Do not go backwards and flip the switch. If you did go down, just jump on the boxes behind you to find a springboard. Jump onto this to go back to where you came into this part of the level. Next go left and flip the switch. You will be on top of the purple platform. Go backwards then right and you will reach the edge of the purple platform. You should see a blue and yellow platform. Jump to the yellow platform. Kill the blue robot and go to the right to get a green shield. Then, go back to the left and flip the switch. Go onto the springboard and hold Down. Follow the yellow path until you get to the red rail. There should be a springboard located here. Go onto it and you will grind the rail to the green platform. Follow the green path while avoiding the electric robots. Go onto the springboard and you will go to the purple platform. Go to the end of the path and you will see some rings. Use Light Dash and you will go to the blue platform. Get the rings and flip the switch. It will lead you to the purple platform. Follow the path and you will see the missile switch, and a gravity switch. Run into the missile switch and flip the gravity switch. It will bring you back to the red platform. Now you can flip the down switch and you will see a missile. Step on the button and the missile will get rid of the green stuff and the goal ring will be there.
Crazy Shadow
Go to the Chao Garden with any character, pick up a fruit, feed it to your Chao a little bit, take the fruit back, and look at your shadow. The fruit will be hovering between your hands on your shadow.
Dark Chao
Get every animal two times with a Dark character. It can be either be Rouge, Shadow, or Dr. Eggman. Give every animal two times to the Chao, and when his stamina level is at 7, put him on the flowers. The Chao should be in a Chao head-like cocoon and in a few seconds it should hatch into a Dark Chao.
Dark Garden for Chao
Take a Chao and raise it with a Dark character. Feed and train it until it cocoons. After it evolves, stairs will appear at the Chao Lobby. Follow them to reach the Dark Garden.
Go to Pumpkin Hill and find the Skeleton Dog. Exit and do it again until you have maxed the line. Go to the Garden with Knuckles and drop off the Dogs. Exit the garden than go back in with a Dark character. The dogs should still be in there. Keep doing this.
Defeating Big Foot
In the Hero storyline, you can defeat Big Foot faster by jumping on the wooden boxes. From here, you can attack him without having to wait until he lands. After he shoots out all the boxes, defeat him the standard way.
As Sonic, if you have the bounce attack, just bounce around Big Foot.
Make sure you have the Bounce Bracelet with Sonic, Instead of waiting for it to come down and shoot, just press A then keep pressing B so that you get higher. When you do, hit the glass cockpit "entrance" located on top of its head. If it flashes red, you made a successful hit. If you are skillful, you may be able to kill it before it lands the first time.
Defeating Biolizard
When the Biolizard starts to sprout bubbles, you cannot grind up his rail anymore. Instead, use Shadow's Homing Attack to continuously attack the bubbles that are still on him, slowly climbing up until you are close enough to hit the shiny red light.
Use your rings wisely. When running from its mouth, stay near the middle of the platform. When running from the its mouth and you reach a dark spot, jump. Do not take any chances since one river will suck you to oblivion. When it bends down and smoke appears from its mouth, grind up the tube and jump on the life support system. When he shoots the orbs, let them hit you. He will wait a little while so you can collect lost rings. Try not to get too far away from the mouth because he will do a tail whip. When he summons the tiny bubbles, do the Homing Attack up to the top. Guide your attack so that it goes to the top of the lizard. This will inflict damage. When he is at a red life status, he and a small barrage of his balls will start to float with you. Avoid the balls and get to the life support. Press B to complete the battle.
To defeat the lizard in space (after the Shadow Attack), you will need do a some tag teaming. Sonic is gold sonic and Shadow is white shadow in this level. Pressing A makes you attack and rise and B makes you descend. In this stage you need to hit a few swells on its body. Note that you have a ring life support. When this runs out, you are dead. Hit his swells a few times and dodge the lasers and the balls.
Defeating Bosses
To defeat Big Foot, Hot Shot, and A Flying Dog, do Rouge's Flout attack and press A. Hit Flying Dog in the cockpit when it bends down to launch again. Use Shadow's or Sonic's Homing Attack in the same way -- hit them when their cockpit is down.
Defeating Egg Golem
Beside climbing the stairs on Golem's back, you can hit him another way. You can only do this when he has two or less hits remaining. When he uses his head butt of death, stay to the side of his fists so the head misses. Then, get directly under the head. He takes a few seconds to pick it up again -- use a bounce attack to hit the "battery".
When fighting Egg Golem, fall down to the sand pit area and land on the platforms. Then, hang on to the rope that pulls you up. When you are up do not get off the rope. Remain there and shoot Egg Golem. When he does his head butt, quickly jump back down on the platform then repeat until he is defeated.
Defeating Eggman
In the Hero storyline, during both battles with Eggman forget about the lock-on missile -- it is too slow. Instead, rapidly attack him with your Vulcan cannon.
Defeating King Boom Boo
In the Hero storyline, only run fast enough so you can see his face. When he starts breathing blue fire, you will have more than enough time to punch the ghost holding the hour glass while he is preoccupied making is wall.
King Boom Boo as one attack called the Chomp Attack. Be careful, because he also speeds up when he does it. If you slow down, quickly speed back up or he will speed up and attack.
Defeating Shadow
In the Hero storyline, during both Shadow battles you can use the same strategies. Shadow cannot defend against the bounce attack.
The first time that you fight Shadow, use the bounce attack with Sonic. Try to land right on top of Shadow. He will not be able to hurt you. Note: Do not get too close to the edge because you have a good chance of falling off.
Instead of trying to catch him off-guard, keep somersaulting at him. This makes the battle easy.
Defeating Sonic
In the Dark storyline, instead of trying to catch him off-guard, keep somersaulting at him. This makes the battle easy.
Defeating Sonic or Shadow, Round 2
Run up to him and do a homing attack, then run up the field. When you see a flash of green light, run slightly more then charge up with B and release. When you hit him two to three times, just somersault into him.
Defeating the Final Hazard
Slam into the pink swollen spots. You have to burst into them. Hold A to burst up and press B to burst down. First, he just shoots eggs. For the second and third hit he will shoot a beam. For the fourth hit, he will shoot two beams. For the last two hits he will shoot two beams and eggs. When you defeat the Final Hazard, Shadow dies.
Defeating the Flying Dog
As Rouge, climb to the top of the fence and wait until there is an opening for an attack. None of the Flying Dog attacks will work if you are on the fence.
Delete animal characteristics from Chao
If you have a Chao with strange animal characteristics, simply give it a few Skeleton Dogs. Your Chao will return to normal. If you want to give it an animal and you do not like the outcome, repeat the process again.
Different Chao head
Go to the Black Market and buy a Red Apple or Cardboard Box. Take it to your Chao. When it is mature enough, give it the Apple or Cardboard Box to your Chao. It will be confused at first, then a "!" will appear above its head. It will put it on its head. If u do not want it on its head anymore, throw or punch it and it will pop off.
If you want your Chao to have an item on his head, such as a skull or a pumpkin, get a Skeleton Dog (small animal) which can be found on Church Mountain in Pumpkin Hill, as well as some other levels. Go to the Chao Garden and give a Chao the Skeleton Dog. Then, give it the item you want placed on his head. Skulls can be found by digging with Knuckles or Rouge in the Dark Garden; Pumpkins can be found by digging in the Chao or Hero gardens; and other items such as a Cardboard Box can be purchased in the Black Market in the Chao Kindergarten.
Different Chao types
You can make your Chao different types (for example, Running, Power, etc.) by giving your Chao a large amount of the same colored Chaos Drives. Pet your Chao with the either a Hero or Dark character. If you give your Chao green Chao Drives, then it will be a Running type. If yellow, it will be a Swimming type. If red, it will be a Power type. If purple, it will be a Flying type.
Double Chao petting
In any Chao garden, put two Chaos next to each other. Start petting one of them and they will both have hearts on their head.
Dr. Robotnik: Mystic Melody
At the very beginning of the Sand Ocean level, stay on the turnstile until it rotates the entire way around. At that point you will see a glow, which is the Mystic Melody. You must fly over to a new platform to get it.
Duplicating Chao
This trick requires two memory cards (with another Sonic Adventure 2 Battle file on the second card), a link cable, and a Game Boy Advance. Put the Chao to be duplicated onto the Chao Transporter. Drop off your Chao to the Game Boy Advance. Then, go to "Move" on the Chao Transporter and transfer your real Chao (not the one in the Game Boy Advance) to a Sonic Adventure 2 Battle file on the second memory card. Next, pick up your Chao copy from the Game Boy Advance and transfer it to the Gamecube. You can now move back your real Chao from the other memory card to the first file you were working with.
This trick requires two memory cards. To get two free normal Chaos at one time, put two memory cards in the slots. Transfer all your Chao into one memory card (through the GBA Station). Erase Chao data on the first memory card, transfer the Chaos back, and then you will find two Chao eggs. Note: If you have acquired the Dark and Hero gardens, they will be lost. You have to earn them back again with babies. Also, If all your Chao do not fit on the memory card, either get another memory card, or you will lose them.
Use the following trick to copying a Chao with two memory cards and no Game Boy Advance. Put two memory cards into the Gamecube. Next, copy your Sonic Adventure Battle 2 file from the first memory card over to the second memory card. This will delete your Sonic Adventure Battle 2 file on the second memory card if you had one. Next, go to the Chao Garden (it does not matter which one, on which card) and go to the transporter (the big Game Boy Advance), select "Move Chao", and transfer whichever Chao you want from the second memory card to the first. If you do not want the file on the second, delete it. You can do this as many times as needed.
This trick requires two memory cards and a Game Boy Advance with link cable. Take a Chao to the Chao transporter. Drop off the Chao in the Game Boy Advance. Then, go back in and pick it up. Immediately after you select "pick up", disconnect the link cable. If done correctly, you will have the Chao both in the Game Boy Advance and the Chao Garden. Move the Chao in the garden to the other memory card. Then, move the one in the Game Boy Advance to the first memory card. Note: If you do not move the one in the first memory card to the second memory card and try to pick up the Chao on the Game Boy Advance, it will erase the Chao in the garden, leaving only one Chao.
E1000 appearance
In Rouge's Inside the Pyramid level, one of the robots you blow up is E1000.
Easy A ranks
Choose a level and select the second mission. This mission is to get 100 rings. To do this fast and easy, pop as many balloons as possible. This is good way to get all As and a quick way to collect rings to use at the Black Market.
Easy rings
Go to any Chao Garden and go near one of the trees. When the coconut or fruit falls off, you can sell it at the Black Market. It does not sell for much, but is worth something. You will get 10 rings for the coconuts.
Go to the Chao Garden. After your Chao has hatched, take the egg and go to the Black Market. Sell your egg shell for the following prices.
Normal egg: 50 rings
White egg: 100 rings
Red egg: 120 rings
Get the Light Dash ability and go to Metal Harbor. Whenever the large rows of rings are ahead of you, use the Light Dash move. This is a very fast and easy way to get rings.
Get something that sells for a lot of rings. If you do not have many, get an old pot and use it for this trick. If you have the time, get a Shiny Egg Shell (recommended). You cannot sell the egg -- you can only sell the shell. Go to the Black Market with the egg and you sell it. then. Exit out of the Black Market and while still in the Kindergarten, hold B + Start + X for about two seconds to reset your game (without saving the Chao data but saving the game data). Since the Chao data did not save, the game believes the egg is still there, while the saved game data records that you sold the egg for a couple thousand rings. You will get the egg and the money back. Repeat this (sell the shell, reset game, then go back to the garden) to end up with lots of rings.
Play Sonic's first level under "Find The Lost Chao". Keep going through the level without getting the Chao until you get 999 rings, which is the maximum number. Then, get the lost Chao .and it will add 999 rings to your game. This is helpful if you want to get a beanie for your Chao later in the game.
On the first level, select the third mission on stage selection screen. Go through the level until you have 999 rings. Then, after you run down the building, do not hit the bouncers and go to the right. Play the Mystic Melody and work your way to the top. Repeat this to get as many rings as needed.
In City Escape level, you can get more than 425 rings. This will give you more rings for the Choa Gardens in just one level. You can also get more than 435 rings if you get all the rings, including the Light Dash rings after you break the iron box after the street boarding part at the very beginning of the stage.
Unlock the racing game (just route 101 or 280). If you got a "D" or "E" rank on the first mission, it would be easier for you to do mission 2 (get at least 100 rings). If you got "A", "B", or "C" rank, just do mission 1 (get at least 200 rings and also get 2 extra lives).
For quick and easy rings, just go to the City Escape level and collect 300 rings every visit.
Use the following trick to get 100 rings in any level, especially Rouge's and Knuckle's stages. Collect as many rings as you can, then go to the back ring. You will start the level over with all of your rings, and will be able to recollect them.
Go to any level as Sonic or Shadow. Choose the third mission (find the lost Chao) and go through the level collecting rings. Do not get the Chao. Go to the end of the level. When you hit the goal ring, you will be taken back to the beginning of the level. You will have all of your rings and all the rings originally on the course will be back. Repeat this until you have as many rings as needed.
Go to the Black Market after you have collected 70 emblems. Buy a Shiny Yellow Egg (7000 rings) and hatch the Chao. His egg shell is worth 1200 rings.
Egg Quarters: A rank
To get an A rank for Rouge in Egg Quarters, get the three keys in 4:30. Usually you have to get it in 1:30.
Eggman in a cage
Go to the Dark Chao Garden with Eggman and stand on the tomb near the small cage hanging on a tree. From the tomb, jump into the cage and Eggman will be caged. If you then jump, his head will be a skull.
Eggman Robot race kart
Complete all of Rouge's missions with "A" ranks.
Eggman: Mystic Melody
In Eggman's Sand Ocean level, go onto one end of the turning platform and stay there until view changes. You will see the Mystic Melody.
Ending track
When facing Sonic/Shadow for the second time, if you keep on running for about ten minutes, the track will suddenly start falling off in front of you. Afterwards, you will have to start over.
Extra Chao Karate mode
Note: You either have to complete Hard mode, or all three original modes (Beginner, Intermediate, and Hard). Doing this will unlock the fourth difficulty mode, Super. The Super mode is very hard if your Chao is not strong enough. The order of the Super matches are as follows
Round 1: Crunchy, a Light Green child Chao with a watermelon on its head
Round 2: Wacky, a psycho Light Green child Chao with dragon horns.
Round 3: Crystal, a Gold Hero Chaos Chao
Round 4: Angel, an Aquamarine Dark Chaos Chao
Round 5: Flash, an Onyx Neutral Chaos Chao (very difficult)
Extra costumes
Get A ranks on every mission with the character you wish to get the costume for in two-player mode.
Extra high jump on springs
Play any level as Sonic and Shadow (apart from Chao Garden). Do a Flair Flip (B then A and tilt the analogue stick in the direction you want to flip) and use Homing Attack on the springs in mid-air. You should do an extra high jump.
Extra Island level
To get an extra Island level, you must get all the Emblems, including Kart, Timed Boss, and the emblems for all A rating. Once you have them all, which should total 180, the island next to the Green Forest level will have the face of Sonic on it. The new level is a 3D version of the Green Hills Zone, from Sonic The Hedgehog. This level has no missions, is very simple, and has many varying routes.
Faster Chao growth
Transfer the Chao that you want to level up to the Tiny Chao Garden in Sonic Advance. Keep giving it fruits until it is at a good enough level and it will grow faster than in Sonic Adventure 2 Battle. Note: Your Chao will not age in the Tiny Chao Garden.
Final Rush: Extra lives
As Sonic, after the first grinding rail, land on the first platform. Take the lower of the two rails. At the end of the rail, jump to the platform and use the only rail, on the ground. At the end of that rail, there is a platform with speed panels. At the end of the platform there is a bomb robot over another platform. Destroy it and use the rail off of the platform it was over. At the end of that rail is a check point with a small gap afterward. Jump the gap and go all the way down the big drop. At the bottom is a rail on the left side. It will take you to a platform with a ring box and a life box. Get the life and then choose "Exit" from the "Start" menu. Re-enter the level and you should have the same number of lives you had when you exited the level. Repeat this as many times as needed.
If you stay in a place too long or if Shadow or Sonic gets too far ahead, they will use their Chaos Control. To avoid this, you need to jump and swerve quite a bit. You will reach a further distance and will not lose any rings.
Finding items in Chao Gardens
You can find items such as pumpkins (regular and Hero Garden) and skulls (Dark Garden). As Knuckles or Rouge, go into the Chao world. When you enter the gardens, there are plants that have big green leaves that are usually in corners or against the wall. If you dig in all of them, you should find an item worth 50 coins. Note: This does not work all the time -- wait or return another time and they should be there.
Fire-breathing Chao
Give a Chao a lot of Dragons. After that, it sometimes will blow fire out of its mouth. Watch closely, as the Chao will not do it very often.
Flame head Chao
To get a blue flame Chao, raise a red Chao with Knuckles until it grows two spikes on it head. Then, go into Chao World and pet that Chao repeatedly for a long time. It should grow two ears on the top of its head. After that, pet it again repeatedly. A blue flame will appear on top of its head.
To get a blue flame Chao, go to the Black Market with a hero character and buy a lime green egg (requires 125 or more emblems). Bring the egg into the Hero garden and hatch it by rocking it (pick it up and hold B). Once hatched, feed it a Sea Monster (from the Hidden Base maze). Then, go back into the Black Market and buy a Chao Fruit. Feed it the fruit, then feed it a Hero Chao Nut. After it finishes, the ball above its head should be a blue and orange flame.
To get any type of flame head Chao, raise your Chao to be a Hero, Dark, or Neutral type. When it evolves into one, give it three Green Lagoon Monsters, which can be found as Tails when you have to infiltrate Eggman's base.
Give a Chao at least three Half Fish or a sea monster. You can find them in the Jungle level as Sonic.
Floating character
Go into Chao World with any character. Walk near the front of a Chao transporter, but not on it. You should be floating.
Floating Shadow
Go to the Dark Garden and walk towards the big tree to the back and right of it. Walk to the right side of the tree. You should see a fence up against the wall. Jump just to the right of the right edge of the fence. If done correctly, you will be floating slightly above the fence.
Floating Sonic
Go into Chao Garden with Sonic. Once there, go to the very left side of that "cliff" which looks like part of a path. Continuously do the Homing Attack (press A while airborne) as quickly as possible. At some point, the screen will start shaking strangely, which indicates you got off the edge. You can fly/float around, and even go in back of the door that was used to enter and end up in the lobby.
While in the park area of the City Escape level, Sonic can jump off the ramp on the left hand corner. When he reaches the bridge he can jump on one speed runner and go back and forth forever. Try to stop just before he touches the next speed runner and it will appears as if he is floating.
Floating Sonic or Shadow
Enter the Hero garden and go up the stairs as slow as possible. They will float up the stairs.
Free pumpkins for Chao
Go to any Chao Garden as Knuckles and dig in the ground. You will find pumpkins if you dig enough. Give them to your Chao, and if it is powerful enough, it will put it on its head.
Fruit in the water
To keep other Chaos from getting food, put the food in the water. The Chaos cannot swim to the fruit and eat it. If you have multiple food, you can put all of it in the water and give the last one remaining to your Chao. Then, take the other fruit one by one to the Chao(s) that you wish to feed.
Full pause screen
Pause game play then hold Y + X.
Fun with Omochao
To make Omochao angry, pick him up and throw him around. If you throw him at an enemy, he will explode. You can even shoot him with Eggman or Tails while he is flying around your head.
As Knuckles or Rouge, go through a wall while you are talking to Omochoa. He will get stuck on the other side and will not be able to get back.
The third challenge Chao race is against several Omochaos.
As anyone except Tails/Eggman, throw Omochao into an enemy to knock him out. With Tails/Eggman, just shoot him. He will wake up and complain or have amnesia.
In Tails' Eternal Engine level, look for the area with a Chao box, a switch to open a door, and Omochao near a space escape door with two dynamite packs on it. Destroy the space door and Omochao will be sucked into space, magically reappear, get sucked out again, and repeat.
Go next to Omachao and press B. You can throw it at enemies and can hear him bribe you to let him go and beg for his life.
Get higher Chao ranks
Get the required Animal or Chaos Drive for the type of Chao you want. For example, the Yellow drive or Sea Otter for swim. Then, give them mostly that color of Drive or Animal. Eventually they will evolve into an adult. When this happens, if you gave them mostly yellow for example, the adult Chao will be a swimming type and if your rank in swim was, for example an "A" rank, it will go up to "S". To improve the letter rank in Stamina, make the Chao a normal type.
Get the Ancient Light
Play the Green Forest Level as Sonic and keep playing until you get to a part in the level with three robots and a gold bomb beetle. You should be able to hear the sound of an oppenent dropping bombs up high. Boost on a speed ramp and you will be able to see another pair of speed ramps ahead of you when you get to the top of the first loop.
Go on the speed ramps ahead and you will do another loop and automatically hit a pair of springs and be bounced onto a big platform with Check Markers leading to the next part of the level. Instead of going through the Check Markers to the next part of the level, move to your right as far as you can go without falling off.
The camera angle should automatically change. You will see the enemy who was dropping bombs. Attack the enemy and you will see a box of rings. Use Homing Attack on the box of rings in mid-air straight after you attack the enemy who was dropping bombs and either use Homing Attack again after that or press toward the way the box of rings faced you after you got the rings in mid-air. You should land on a small platform with a green light on it. That should be the Ancient Light for Sonic.
Gold Chao
Link the game with Sonic Advance on the Game Boy Advance. Go to the Tiny Chao Garden. Press L and if you are lucky, you will be able to buy a gold egg for 1000 rings.
Trade a yellow jewel from Sonic Advanced to Sonic Adventure 2: Battle. Buy a normal brown Chao from the Black Market. Buy two Heart Fruits. Give it to them. When they lay an egg, hatch it. It should be a gold Chao.
Green Forest: Half-Fish/Nematoad animal
When you get to the part where you can smash boxes to go to a secret bottom section, run around the boxes shaped like an "L". Look on the inside of the shape to find the green Half-fish/Nematoad.
Green Forest: Hidden rings and life
On the part where you go down on a vine-like a bungee cord and bounce back up, hold A to go faster and bust through. You should get an extra life and some rings. Make sure to hold A until you come back up. If done correctly, you will get 1000 points.
Green Sonic Chao
Get a blue egg from the Black Market. Give that Chao at least 15 Green Chaos Drives. As Sonic or Shadow, keep petting the Chao. Give that Chao the hog at least two times. You can also get a regular color Chao and give the 15 Green Chaos Drives. Then, when it evolves, spend a lot of time with the Chao as Sonic and it will be blue.
GUN Robot in wrong place
In Prison Lane at the fourth metal lift, the GUN Robot that stands near it appears inside the lift when it goes up.
Hatching your Chao
If you are having trouble hatching your Chao, hold it for about ten seconds then whistle. It should pop out.
For a quick hatching Chao, pick up a Chao egg and throw it against the wall. Note: This may affect your Chao's appearance.
Have opponent finish race on foot
Play a board race with Sonic, Amy, Shadow, or Metal Sonic Have player two stay at the start of the race. Go to where you can use attacks. Use an attack that hurts them. It will knock them off their board and they must finish by walking or running the entire race.
Heart in Chao Fruit
If you look closely at the flat side of a Chao Fruit, there is a heart there. It is almost the same color as the Chao Fruit, so it can be difficult to see.
Hero Garden for Chao
Take a Chao and raise it with a Hero so that it will resemble a Hero. Wait until it cocoons into an angel-like Chao (it will have a halo). Then, take the stairs going up at the Chao Lobby to reach the Hero Garden.
Go to Pumpkin Hill and find the Skeleton Dog. Exit and do it again until you have maxed the line. Go to the Garden with a Hero character. The dogs should still be in there. Keep doing this.
Hidden Base: Half Fish animal
When playing as Tails, there is a hidden green sea monster in the small maze. It makes your Chao's color turn green.
After you land off the second vine, there will be three boxes in an "L" shape. Stand beside them and change the camera angle. You will find a Half Fish animal.
Hidden Base: Interesting statue
In the Hidden Base level as Tails, go to the pulley where, at the top, there are five to six Kiki's throwing bombs at you. In that area is a headless statue of a nude woman, holding her cleavage.
Hidden Chao transportation
Walk up to the Chao Kindergarten when an item is in your hands and your Chao is at a classroom. When selecting "Pick-Up Chao", if you still have the item in your hands, your Chao will not be in your hands. It will be in the Chao Garden (if your cocoon has hatched -- go to either the Hero or Dark garden).
Hin: Omochao's phrases
When you want to have some fun with Omochao, do the following and he will say the corresponding phrases. Note: Omochao never actually does what he says.
When picked up
"Hey! Stop it! Let me go!"
"Hey! Stop it!"
While in your hands
"Augh! Augh! Help me!"
"Please, Help Me!"
"Help! It's getting Worse!"
"If you don't stop it, I'm gonna tell the Principal on you!"
"If you don't put me down, i'll get mad! I'll go tell my mom on you!"
"My Energy is low. I need to be wound-up again"
"I understand. I promise i'll eat all my Carrots!"
"Hey, I'm on Your side, y'know! I can give you hints to help you!"
"*sigh* Whatever..."
"Now I', getting mad!"
"Hey! Why don't you go get yourself a Teddy Bear?"
When put down
"Stop It. What are you doing? You're making me mad!"
"*sigh* i was so scared. What gives?
"Thank you for holding me. But... you were kinda rough"
"Thanks for saving me! I was scared!"
When thrown
"Awaaah!"
"Stop it!"
"Bye Bye!"
"Help Me!"
When shot or thrown at enemy
"Huh? What happened? Who am I? Where am I?"
"Owwie! That Hurt! I'm mad at you. I'm not going to help you anymore! Hmph!"
"Ouch! Why are you being such a bully? I didn't do anything wrong!"
Hint: Get chao drives quicker
On city escape there are about 20 chao drives all together and about 30 animals adding up to an average of about level 10, but you're only allowed up to about 12 so keep doing it over and over again until it's at the level you want it to be.
Also if you get the chao box on top of the stairs, the one after the grind rail, and the one on the platform after the loop, you will get a unicorn!
Hint: Knuckles Side Drill Claw
While battling King Boom Boo, run at full speed while he's chasing you and run into the wall.
You should still be running at full speed. Punch three times and press B again while still tilting the analogue stick in the way you are running. Knuckles should do a kind of side Drill Claw.
Hint: Sonic speaking
Turn on your Gamecube without a Memory Card in any slot. Sonic should say "Did you insert a Memory Card?".
Homing Laser upgrade
To get the Homing Laser upgrade for the Eggwalker, on the first stage of the Dark story line, find a hall blocked by iron containers. Shoot them with your Vulcan cannon (needs to be upgraded first). You will find the homing laser upgrade at the end of the hall.
How to make 2 chaos mate
The first thing to do is buy two heart fruits. Then you put two chaos next to each other, and feed the chaos 1 heart fruit each. Soon they'll jump up, kiss, and you'll see an egg! Note: This will almost always be accomplished by the same kind of chaos.
Hurt Chao by petting it
Abuse a Chao a lot with Rouge. Once it really hates Rouge, throw it against a wall. After it bounces off the wall, quickly run over to the Chao and jump over it. Then, press B button to use the Dig move on the Chao's head to send it flying. Next, quickly run over to it and pet it. It should send your Chao flying again. Note: You will need to do those steps very quickly.
Hyper Shadow Chao
Raise a Silver Chao with Shadow. Feed it only fruit and chaos drives (red recommended). When it transforms, it will be a Hyper Shadow Chao.
Inside springboard
Play the City Escape level in the Hero story line. Shortly after you run or fall down the building, play the Mystic Melody on top of the Mystic Melody Stand. A springboard will appear and you will be inside of it, with only your head showing.
Invisible animal
In the Dark Garden, pick up a small animal and throw it behind the Chao transporter. If aimed correctly, you should hear the sound of your Chao jumping in the water. Look there to see a shadow of the small animal moving towards the water, but you cannot see the animal. Once it gets to the water it will reappear, so you will not lose it.
Invisible Chao body
Go into the Dark Garden. Pick up a Chao and take it over to the tree. Go to the right of the tree and you will see a fence. Drop the Chao near the fence. If done correctly, the Chao will drop into the ground and all that will be visible is its head.
Invisible f
