Madness: Off-Color

MADNESS: Off-Color is an action 2D game where you play as Pico, famous Newground's mascot, but with a twist: Pico fell into the world of Madness Combat and has to fight his way through waves of grunts, agents and zombies. The game is heavily inspired by Madness Interactive.

You move around with WASD, and use your mouse to aim, attack/shoot and pick up weapons. Enemies come from both sides of the screen and you can pass to the next section after slaying all of them.