Chompy is an automated lawnmower that can be located in the Cargo deck of the map, where it can be activated manually, through the Security power-up, or by activating the wallbuy. When it appears, Chompy will circle around the Cargo deck, mowing down zombies in its path. Both zombies and players can climb on top and stand on Chompy as it moves. An achievement titled "Take Off, Hoser!" requires the player to ride Chompy for a total of five minutes in a single match. In the aftermath of Flotsam & Jetsam, Chompy is destroyed by the ensuing explosion caused by the four survivors.