This will show you how to get some lengadary pokemon that you can get without AR or
cheating

Palkia/Dialga:
Go to the top of the spear pillar and fight the last of the team galatic grunts, Mars,
Jupiter, and Syrus ( the boss ) beat them and then catch Palkia/Dialga ( DO NOT USE YOUR
MASTER BALL there will be more powerful pokemon then Palkia and Dialga ) When you fight
them they will be on lv. 47
Heatron:
Complete the shinoh dex and go to the survival or resort area and go to stark mt. you will
team up with some guy with red hair ( forgot what the name was ) and go inside stark
mountain and get to the end of it he will pick up a rock called the magma stone then you
have to get out of stark mountain and go to the survival area, go to the house next to the
pokemon center and he'll be in there he will go out of the house go back to stark mountain
go to the end where the magma stone was Heatron will be there in the spot where the magma
stone was ( You might use your masterball for this one ) It'll be on lv. 70 so be ready to
battle it.
Giranatra:
NOTE: Make sure you have rock climb and defog with you 

Finish the shinho dex and go to rt. 214 then look to the right, eventally you'll see a
path it will lead to the sendoff spring then if you have repel use it then use rock climb
then you'll be at a secret lake get to the other side and use rock climb again go in the
cave. Now use defog to clear it up and go in one of the carvens if you see a pillar keep
going, as soon as you pass three pillars you will see Giranatar! ( You might use the
masterball on him ) Make sure your ready because he is also on lv. 70
Regigasas:
When you have the three regi's ( Regirock, Registeel, and Regice ) go back to the
snowpoint temple get past all the icey parts until you reach the bottom floor there will
be a statue there go near it and press A it will show you some reading then the statue
will begin to move it will acually be Regigasas! ( you also might use a masterball for
this one ) He's on lv. 70 so get ready

These are how to get some other lendendaries in the game<table
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