The Chao has to be neutral and have speed as it's main stat.
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.
get eggman and throw the chao
You can't get sonic chao in chao garden. but if your parnter is cream. you can make cheese transfom to sonic chao. easy. eh?
No but you can do the opoosite you have to go in the tiny chao garden and hook a gcn to gba cable and play sab2 then go to the chao garden and go to the gameboy choose pick up and choose the rings.
make your chao a normal run type
get a blue chao and make it a neutral run type
You can't make a Chaos Chao look like Sonic, but you can make a regular Chao look like him.
buy a golden chao then make it run type.
There is no "egg chao" in SAB2, but you can put eggs on an already born chaos. You chao has to be somewhat smart, and you have to be very persistent, but if you keep handing an eggshell or unhatched egg (murder!) to a chao, it will eventually figure out it can put it on it's head, which it will do itself. This effect is permanent and the egg cannot be switched out afterwards, so make sure the egg/eggshell given is a cool one!
No because skeleton dogs make your chao a normal type.
No, on the third lifetime of the chao it must be fed precisely 1 of each type of animal or it will not become a Chaos Chao.
You do the process to get a sonic chao again or make it reincarnate twice for a CHAOS CHAO!!! - the same as he said, but your chao will be better each tmie it reincarnates because it will keep 10% of its stats !!