The gameplay & sounds are exactly the same as in Cops Chase but the theme and the sprites are drastically different. In this game a robot Martian civilization is trying to take over the universe. In the bottom screen you fly your fighter through a Martian canal while your being attacked by oncoming saucers, you can either shoot them or evade them. After you've hit 16 saucers you can proceed to the middle screen, here you attack the main Robot city. You try to bomb the tank at the bottom of the screen. 3 'conveyor belts' of little tanks move in between you and the tank from the left to the right and vice versa. You'll have to bomb through them first creating 'moving holes' in the conveyor belts before your bombs can get through to hit the tank (not unlike the endboss in the arcade game Phoenix). The tank however can shoot at you right through them all of the time. In the top screen you have to bomb the robot headquarters, which is guarded by a robot who moves from the left to the right at the top of the screen throwing bombs at you, you have to catch each bomb or your fighter behind you will be destroyed, you automatically throw the bomb back. You can also throw a bomb yourself, however only one bomb can be in the air at any one time in each of the 3 positions so that's 3 bombs in total. Behind the robot there are three doors, which will disappear when hit by a bomb but only if the robot didn't catch the bomb. The door will temporarily disappear and you can only destroy the headquarters when you throw another one through it while its gone. This is quite difficult. A varied game, fun to play.