Five levels, tested with 2-4 players with four being the recommended number. Comes with Anvil Shapes patch (something to do with naked aliens). 1.) Boondoggle; a multi-dimensional environment with four portals. Not sure what is meant by portals here. Very straightforward square playing field, small. 2.) Spiro Caves; large arena with twisty stairs (tunnels) leading off main field to sniper slots & ammo refresh. May be slow due to size & number of tunnels. 3.) Terminal Carnage; built to look a subway terminal, and it does! Long rectangular playing field, lots of elevators to confuse...