Villain Arc System

Bozo, the unfortunate but smart goblin, gets killed for being weak by the very humans whom he hated. But this hate takes a new turn, helping him activate the Villain Arc System. Thanks to the system, he now transmigrates to different worlds to play the role as a villain, and kills the humans whom he despises by either manipulating them, or outrightly destroying them. It's not just one world, but multiple worlds where he would be put into different situations, like a play.