Sonic Advance 1, 2 and 3 (Gameboy Advance) have chao gardens which are small and not very great, but Sonic Adventure (Dreamcast), Sonic Adventure DX (GameCube), Sonic Adventure 2 (Dreamcast), Sonic Adventure 2 Battle (GameCube) all have chao gardens where you can do the most things and raise your chao the best and most effective. Sonic Adventure 2 Battle is the most convinient and shows you all you need to know about a chao, and it's a really good game to raise them in by using animals (and Chaos Drives) as a means of training them.
Sonic Advance 1 and 2 can connect up to Sonic Adventure 2 Battle and Sonic Adventure DX via a Gameboy to GameCube link cable and you can exchange chao with.
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Yes there is. Whoever answered this answered WRONG there is no chao garden in Sonic Unleashed just a mission on the 360 and the ps3 version where you must rescue chao in Spagonia ~ Yourstrulyman88
sonic chronicles has a chao garden, but it's not as good as the sonic adv 2 on the GCN chao garden
You get the jewel chao in the GBA Sonic games such as Sonic Advance, Sonic Advance II, Sonic Advance III, and Sonic Pinball in their Tiny Chao Gardens. You can raise the rings by playing the games in the gardens or earning them in the story mode. CHAO COST EGG COLOR Regular FREE White (This isn't a jewel chao, but a regular starter chao) Silver 500 Silver (DUH) Gold 1000 Dull Yellow Ruby 5000 Redish Pink Sapphire 7000 Deep Blue Amethyst 8000 Purple Emerald 10000 Green Garnet 12000 Bloody Red Aquamarine 14000 Sky Blue Peridot 16000 Lime Green Topaz 18000 Orange Onyx 20000 (ouch) Black Moon 20000 Black/Dark Purple (This chao is only a rumor and I have only seen hacked versions of the chao, I have never seen this chao itself)
You need to have a regular chao to get a sonic chao on Sonic Adventure DX. Before your regular chao evolves to a neutral chao, you need to give it a lot of speed. As it evolves to green, give it more speed so it turns blue.
There is no chao in generations.....