you can't really make a gold chao unless it's ancestors were gold chao.
You'd have four different options: * A gold chao * A silver chao * a gold chao with silver highlights * a silver chao with gold highlights
If you breed a gold and silver chao, you can get * a Gold chao * a Silver chao * a Gold chao with silver highlights * Or a Silver chao with gold highlights If you didn't get any of these, somethings wrong with your gamecube/dreamcast
Yes they are.
Either get a two tone grey chao and make him a shadow chao or a two tone blue or sky blue chao and make either of them a shadow chao or a two tone black chao.
No, Jewel Chao cannot be two tone
The only way to get a gold Chao is to find (or buy) a gold Chao egg. You can find one somewhere in Sonic Adventure DX for GameCube or PC. You can, however, buy one in Sonic Advanceand Sonic Advance 2 for Game Boy.
No you can not make a chao age faster
You can only make hero and dark chao in SAB2. Also Sonic chao are neutral so if you give your chao a lot of run animals you will get a Sonic chao.
You can't make a Chaos Chao look like Sonic, but you can make a regular Chao look like him.
Yes
Gold chao can only be found in sonic advance for the gameboy advance. Then you put it on sonic adventure battle
Yes.