Sacred Citadel is shaping up to be a seriously enjoyable cooperative brawler with responsive controls, colourful art style and plenty of subversive humour. It's out now on PC, XBLA and the PlayStation Network, and judging by our hands-on time, it's ought to be a perfect for local multiplayer sessions (pizza at the ready). I'll aim to have a full review ready soon, but in the meantime, here's the launch trailer.
Not entirely convinced that dubstep was the right choice here, but such is the age we live in. I'd recommend muting it and playing this in another tab.