In-app summary: This unreleased prototype is a sequel to Combat! User Summary This previously unreleased Atari 2600 game is available to buy through the Atari Greatest Hits App. It includes a tank game with four game modes: Random trees (Tree canopies obscure the view of the player tanks) Brick walls (Walls are impassable by tanks, but are destructible by tank shells) Players place trees (Players can draw the location of tree canopies before the game starts) Players build brick wall (Players draw the location of the brick wall before the game starts) Unlike the original game, there are no aircraft modes.