What do you get when you combine silly characters, addictive wack-em side scrolling combat, and 4 player coop that is infinitely replayable? Castle Crashers! It stars the 4 colored knights who go on a quest to save the princesses from the unknown evil. Sure, the story is juvenile, but laughs and cheesy grins are in store when you're staying up way too late with your friends playing this game, trying to beat it "just one more time" to unlock the next set of characters.
Combat consists of 2 button melee attacks (a light attack and a heavy attack), several different magic spells (each unique to the character you play as), 1 button archery, and blocking. While it may seem simple, combat is spiced up by the upgrade system (you actually feel like you're improving your character), and the different combos for both magic and melee. In addition, there are challenging but fun boss fights that all feel very unique laugh (the evil corn-on-the-cob is a standout) every couple of levels. Sure, it's repetitive, but you won't mind at all when you're having a blast.
If you have a group of friends, pick this one up and have a blast. If you're by yourself this is still fun but it is a riot with multiple players.