How do you get a dark Chao in Sonic Adventure 2?

How do you get a dark Chao in Sonic Adventure 2?

To get a Dark Chao, one must feed it Dark Fruit and raise that Chao with Shadow, Rouge and Dr. Eggman. Dark Fruit can be bought at the Black Market at the Chao Kindergarten in Sonic Adventure 2: Battle.

How many times can a Chao transform?

Yes A chao can envolve More than two times.