Take your firearms and go on a rampage through a variety of levels, shooting the robots that try to stop you. Control the action by pressing the single buttons on your controller and shooting everything that gets in your path. Evade a variety of hazards, including spikes and falls, and collect loot to increase one's weaponry. Complete every boss level and beat them in order to continue going through more than 30 levels. You'll need to use the sling to reach your foes, avoid helicopters and mercenaries, and rescue the world in this game.
Use the mouse to jump, the space bar to shoot, and the WASD keys to move. On mobile devices, touch the screen on the game buttons.