The forces of darkness circle above, gaining momentum for their aerial charge. You are not entirely helpless ... armed with destructive missiles and protected by a force-field, you have the tools to repel Satan's hordes. But do you have the ability? You'll be bombarded with missiles, molten rocks and explosive lava eggs hurled by Satan's demons and creatures of darkness, whose variety of attack patterns always challenge your reflexes. You'll brave the pitchforks of Satan himself ... if you can survive his servants' attacks long enough to build a bridge to invade his turf. As you advance the challenges:become more and more difficult, as day fades into night, light into darkn~ss. The classic struggle between good and evil. .. how good are you?