Although the robot can jump, the robot will be destroyed if jumping while the eye is open. Various extra hazards, such as birds, bombs and flying sharks, can also destroy the robot during each level. At the end of some levels, rather than destroying the eye immediately, the robot must navigate a maze and collect gems before it encounters the eye at close range. Once a level is completed, the robot flies through outer space and must shoot or avoid "tetras", meteors, and various obstacles (including a floating head that fires nails) to reach the next level.