Prehistoric Gallery is one of the 4 games available with the Shooting Gallery add-on. Three of the games use game cart #9 and the fourth uses #10. The add-on comes in its own box with a gun!

In Prehistoric Gallery, one player holds the gun and have 15 shots to shoot as many dinosaurs as he can. The second player is just the assistant and moves the target light behind each of the animals.

When you shoot the target spot, it disappears. You then have to use the gun's pump action to restore the light for further targeting.