Obviously you need to know how to make a Shadow the hedehog Chao. First you need a reg. dark chao (unevolved).Then you find green chaos drives in stages in the game and give them the chao.Make sure you feed it fruits that grow on trees. Once it evolves the first time it will turn out green and black.Don't be alarmed the second time it evolves it will be in Shadow Harmony(it'll look like Shadow).It also works with unevolved hero chao.It will look like Sonic.Shadow chao are simple to make!!!