The game, controlled by joystick, has you moving the time warrior in horizontal-scrolling parallax levels. You have to collect nine pieces that assemble to a face of the primeval entity who must be battled.
Meanwhile, the locals in each time zone do not like time warriors and throw and fire everything at you. Luckily, you are carrying an energy conversion kit that changes some shot objects and enemies into valuable weapons and armoury. Good luck, you will need it!