"Heavy Weapon," a side-scrolling shooter for the PC, Mac, Xbox 360 Live, and the PlayStation Network, puts players behind the controls of an atomic tank that must repel an invading communist army, driving the enemy forces back to their base camp. While the tank can only move left and right, the tank's powerful turret gun aims up and down to target foes in a classic arcade-style shoot 'em up.
Players may choose from two distinctive game modes. Mission mode plays like a traditional single-player campaign, with the player given three lives to complete each of 19 levels, fighting through scores of enemies before confronting a final boss villain at the end of each stage. In Survival mode, players can either fight solo or join a team in an attempt to survive as long as possible against a constant stream of foes.