Shameless product endorsement: Bunnies!
I cannot, CANNOT stress how fun this game it. It arrived last night via Gamefly (which, if you don't have a rental account with them already, you should set it up NOW!), and I had to pause it several times to wait for the spells of belly laughter to subside enough to resume play. Sooooooo fun. Soooooo strange. It's minigame/FPS (with plunger-gun a la Quackshot) in nature, and is more than enough to hold me over till Warioware arrives: