The second evolution of a hero chao, you need to give your chao the purple chaos drives but mor intresting if your not the plain type of person try making a NiGHTS/Reala chao this can be made by keeping your chao neutral and making it a fly/fly with purple drives then stay in the chao garden with that chao only till it evolves like a Sonic or Shadow chao.

After that you got your self a NiGHTS chao that looks similar to Reala