Ok Gun game...Rating the SMS version. You can use a light phaser or controller.A lot better to use the controller in this as you can set up the speed of fire and throw grenades. 6 levels in this, not that easy as you will run out of bullets and grenades throughout the levels. You'll have 1 continue sometimes 2 as you game over. Again the limited continues in these 8 bit games hurt it from being a great game.