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Sea Devil is a 1972 electro-mechanical hunting game produced by Sega. A manta ray moves around the playing field and the player shoots it with a spear gun. It has a series of slides on a wheel that makes the manta ray move and thrash around when shot. The game features electronic sound and an 8-track player. It is essentially the same game as Sega's Killer Shark, but Killer Shark has a shark instead of a manta ray.