An original concept action shoot-'em-up where you take control of the train's gunner and battle fighter planes for 10 levels. You can aim your gun with the mouse, using the left mouse button to fire. Your gun has infinite ammo but will need to reload when the cartridge is spent. This will take 3 seconds. The gun might also overheat after continual usage. You are required to repel off waves of enemy planes to protect your cargo from bombing. The game is over if all cargo cars are destroyed. Press P to pause the game.