Rainbow Devil is a boss from Mega Man Zero, fought in the Neo Arcadian Tower. It is a bunch of slime (that like its name, changes colors) controlled by a Pantheon head.
In the first game, his attacks consisted in sliming towards the enemy and damaging him. He also could give a stretched punch. He can also transform into a dinosaur head, which will bounce of and separate into two spheres and later into 4 spheres and stop bouncing. Another one of his attacks consists in launching pieces of him everywhere in a spiral form. In Mega Man Zero 2, this attack is explosive.
This boss reappears as the first boss of the final stages in Mega Man Zero 2.
- Nickname: Nightmare of the Sky Bridge
- EX skill: Nightmare Blow