to get a black chao (the kind that you vurse in the challenge race that they reffer to as him) on the gamecube version of this game! All you have to do is have a dark chao that is grey and a regular dark chao that is black (that you hatch from a regular egg) breed with each other and the baby should look like its a dark grey, a pale blue stomach, and yellowish greenish hands and feet. If you go onto chaoisland.com they say its impossible, well its not! :]