Tail Gunner is a monochrome vector arcade game created by Vectorbeam in 1979. The premise of the game is that the player is the tail gunner of a large space ship. Enemy spacecrafts are approaching the vessel for attack, and the player must aim a set of crosshairs and shoot the enemies before they slip past the player's cannons. In addition to shooting down the enemy ships, the player is also given limited use of a shield that can block ships from passing. The game ends when ten ships slip past the player's cannon.