How to get a invisible chao:
You have to mate a shiney yellow chao and a jewel chao to get an invisible chao.
Chao with rainbow wings and arms:
You have to get each color of chao drive and continue doings that code until your chao evolves.
Infinite ring code:
First you buy the most expensive item at the black market.
Then you save the game. Go back to chao garden. Then sell the item then restart the game by start, b, x at the same time.
Glitch chao eating nothing:
this glitch only works if your chao is just about to eat a fruit. When it makes that click noise take it away from it and then the chao will be eating nothing unless you throw the fruit.
How to save a chao from dieing:
this cheat best refers with a ball. If you see a grey cacoon around a chao that means that it's dieing. Go out of the garden until the chao starts playing with a ball. Stop it from playing with the ball and pet it alot then your chao will have a pink cacoon which means its reincarnate.