The hunt is on for the last remaining lost key to Atlantis! Hydro-Dart, with its twon harpoon launchers and powerful searchlights will making searching for the key an easy task...but wait! Its the Atlantean Sharkman on the Mantarang! this dangerouse sea scourge is equipped with Electro-trident and razor wings so beware of this Awesome Atlantean... he's desperate to find the key before Doc in the Hydro-dart! The search is on!