Go to evolution of z to fuse these z items to unlock these characters.

Character	How to unlock
Great Ape Baby	Super Baby 2 + artificial blitz wave.
Janemba	Saike Demon + people's bad energy.
Majin Buu (pure evil )	Human gunman's gun + Majin Buu.
Super Baby 1	Baby Vegeta + lower class saiyan.
Super Baby 2	Super Baby 1 + power from a lower class saiyan.