Have you tried comic book-looking platformer/manfighter Shank? It came out on Steam last week, boasting a demo and a beefy £10 pricetag. Maybe £10 sounds like a lot, but then maybe you didn't know that Shank is a game where guns, knives and your chainsaw are simply three different buttons, and protagonist Shank juggles them all like a flair bartender.
I didn't get along much with Shank when it came out on Xbox Live, but reviews were pretty mixed. As a litmus test, you can watch a video of Shank doing his thing after the jump. If you giggle continuously or start pumping your fist in the air while watching it, Shank might just be for you.