The Gadget King's gem has been stolen. BOP and BUMP have been summoned to get it back. Follow them on a wild ride through the oceans and the atmosphere in their quest to track down the evil THUMP and return the gem to the Gadget kingdom. Features: Six levels of the wildest arcade action ever seen on retro games. Use any number of BOP and BUMP's strange but effective defenses necessary to defeat their enemies. But watch out, because most of the inhabitants in this world of mechanical madness have a few surprises of their own. Now with Save States!