This stage is notable for the introduction of the Kirby Submarine transformation. Elline transforms Kirby into the powerful machine and he promptly cruises through the deep sea. Schools of Blippers and Sawgills slowly swim toward the hero, giving him time to aim his torpedoes. The player is encouraged to collect as many Point Stars as possible; super torpedoes can destroy Metal Blocks and large groups of enemies. At the end of the stage, Kirby must battle the mid-boss Deepsee.