The idea behind this game is just to solve puzzle kind of levels with some... space man. With this astronaut (if you can call it that way) you have to shoot other astronauts, space ships and avoid mines bombs and aliens (if it are aliens, I'm not sure :). At the end of a level (which is just one screen). You have to shoot some kind of ball, seems like the thing you have to hit and then there come out squirts and other animals in the Sonic series on the Sega. Then the level is finished. You get an amount of time at the start of the level (1 min, 2 min and so on) within you have to reach the ball thing.