To get an Onyx Chao in Sonic Adventure 2: Battle is to have Sonic Advance 1 or 2 (Tiny Chao Garden) and a GBA link cable to transfer it to the Gamecube. It costs 20,000 rings and it's a little rare. But it can be found at the shop in the Tiny Chao Garden. Hope this helps!
You need a dual link and a gameboy advance
You would need a GBA cable link and a GBA and sonic advance 1 or 2 and go into the tiny chao garden and buy them
buy a blue egg
Sonic Chao turns blue on it's second evolution.
You would breed a yellow chao and blue chao. Or you could buy a green chao egg from the black market.
this is how i did it i traded my chao from sonic dx to another chao from sonic advance 2 for the GBA then i traded that same chao to my one of my chao in sonic 2 battle
No the chao gets sonic hair.
Sonic Adenture 2 is the original game for the Dreamcast and Sonic Adventure 2 Battle is a remake for the Gamecube. Sonic Adventure 2 Battle has better graphics, chao karate class, chao activities and chao shops.
get a blue chao and make it a neutral run type
Gold chao can only be found in sonic advance for the gameboy advance. Then you put it on sonic adventure battle
Sonic adventure battle 2
There is no chao island. sorry.
Chao are little blue creatures that you can keep as pets in the sonic games. you have to take good care of them.
There is more to Sonic Chao than the first evolution. First raise your chao to have high speed until it evolves into a green adult chao (Adult Speed Type) and then keep feeding it green chaos drives and no other drives. he will slowly change into a Sonic chao. (This does take a long time to do!)
No