Demon Head

The Demon Head is the final boss of Virtual Boy Wario Land and isn't seen or even heard of until the very end of the game, though a logo of his face appears in many areas. Wario fights the Demon Head by jumping back and forth between the screens, hitting him in the face.

The Demon Head can "swipe" across the screen, as well as dig his fingernails into the ground. He can also breathe fire, which splits into two flames that move on the ground in opposite directions. The Demon Head can only attack on the surface closest to the player.

Trivia
Demon Head's nose is similar to Waluigis nose.