Examples include brick walls that can be destroyed by having either the player's tank or an enemy tank shoot at them, steel walls that can be destroyed by the player if they has collected three stars, bushes that hide tanks under them, ice fields that make it difficult to control the tank and patches of water which cannot be crossed by tanks. Each map contains different types of terrain and obstacles. Note that the player can destroy the base as well, so the player can still lose even after all enemy tanks are destroyed.īattle City contains 35 different stages that are 13 units wide by 13 units high. A level is completed when the player destroys 20 enemy tanks, but the game ends if the player's base is destroyed or the player loses all available lives. The enemy tanks enter from the top of the screen and attempts to destroy the player's base (represented on the screen as a phoenix symbol), as well as the player's tank itself. The player controls a tank and shoot projectiles to destroy enemy tanks around the playfield.