Perform the following actions to unlock additional characters.

Character	How to unlock
Dead FARMER	Beat Frieza in "GOHAN FUSION WITH GOHAN ZEO"
Deidara	Beat him in chapter 1
King of Pop	Defeat Riddler in the clam of death 3 times
Lord Frieza	Kill Goku in Planet Namek in what-if story "Saviors Death?"
Prototype	18-Beat Android 18 in the Calamity Zero Battle 25
Sai	After the ending of chapter 1
Sasori	Beat him in chapter 1
Yamato	After the ending of chapter 1