Sometimes you find a co-op game when you least expect it, and such was that with Eidos's Puzzle Arcade for the Xbox Live Arcade.  With seemingly no hype this game hit Microsoft's online service in what could possibly be a game that has the broadest appeal of any XBLA game to date.  Best of all it's easily playable in co-op with four players both locally and over Xbox Live.

When I first saw this press release come across my inbox I thought...eh.  Then I looked at the screens and I saw it supported co-op play for up to four people and suddenly the game had potential.