Review: Boxhead - More Rooms
The Boxhead series of games stands out as the best Zombie shooter out there. The maps are fun and the weapons are creative and destructive. My personal favorites are the barrels. I love to barricade myself behind some barrels and wait for the zombies to pile up around me, then blow the barrels up killing tons of them.
Killing lego zombie men is very addictive so I recommend you make sure your boss isn't going to come by!