Sonic Advance Hints

Run up to the first yellow spring in the level (Just as the ground turns to pavement and grass) and jump to the right side of it. Push yourself against it, face right, and do a spin dash. Release to send Sonic/Tails/Knuckles spinning forward, while holding Right on the control pad, and hold it. You'll go through the two loops, but as you go downhill, your character will fly far right and off the screen. Keep holding Right untill the camera catches up with your character.

You must have a GBA, GBA to GCN link cable, two memory card with Chao garden saves, and this game. Send the Chao you want to duplicate to the GBA. It should say it's making a copy. Once you have the copy go to move. Move the duplicated Chao to the Garden in slot two. Now take the Chao out of the garden and put it in slot 1. Now take the other Chao from slot 2 and transfer it to slot 1. You now have two of the same Chao.

There is a glitch in the Tiny Chao Garden. It makes the rings you collect in story do not transfer in the garden. I'm not too sure how to fix it, but I do know how it happens. It happens when you delete your data.