This is old news, actually, but we sadly missed it last week: Sega have put a demo for their side-scrolling action-platformer Hell Yeah! Wrath Of The Dead Rabbit up on Steam. It's a game about an enraged rabbit fighting his way through a spectacularly colourful hell, which sounds like your sort of thing. Here's what the game is for: "Hell Yeah! helps you clear your mind after a bad/frustrating/boring day at work. Achieve this by exploring the four corners of Hell and exterminating monsters in a cheerful yet challenging atmosphere."
Why not see it in motion, below, or hell, even play it.