If you're a fan of crazy beat'em ups in the vain of Bayonetta, Devil May Cry, Ragnarok Battle Offline, God Hand, VJ, Madworld and all that jazz, I recommend you guys check out Aces Wild.
It's fast paced, insane, unforgiving and pretty damn fun. Plus it has co-op so you can play with a buddy.
What's really great about this game is the meter system, the more meter you have the more damage you give/take, and the more meter you spend, the harder the game becomes until you press the "panic" button.
The Panic resets the enemy aggression and heals you for how much meter you have, but the panic threshold increases and you're score multiplayer drops.
It's only 10 smackers to boot. The music is pretty sweet too.
Edit: forgot to mention one part, this game does have one small flaw where sometimes the screen can get filled with enemies and you can have a hard time seeing yourself. But I found it easy to control once I got used to it.