Sea Devil

Perhaps Sega. Player aims gun at a moving manta ray to kill it.

Player aims gun at a moving manta ray to kill it. When the player shoots the manta ray, it flails around as if electrocuted (with appropriate sound effects) for a few seconds, before the next manta ray appears. The game is timed.

The video is created with a series of still slides, or frames of a movie on a wheel. In the inside of the machine, the wheel ratchets around in a circle, timed with a strobe. When you hit the target, it switches over to a different set of images with the ray flailing about bleeding.

Sister game: "Killer Shark" (had shark instead of manta ray, but otherwise identical)