SegaSonic Cosmo Fighter (セガソニック・コスモ・ファイター,SegaSonikku Kosumo Faitā?), also titled SegaSonic Cosmo Fighter Galaxy Patrol, is a children's ride released in March 1993 as part of Sega's "Wakuwaku" line exclusively in Japan. The arcade ride is a shoot'em up featuring Sonic the Hedgehog in a red spaceship rescuing animal friends from Dr. Eggman in space. The ROM was found, and eventually dumped in 2017.
Spoiler warning: Plot, ending details or any kind of information follow.
Having moved his operations into space, Dr. Eggman has begun hunting for space-faring Animals out in the cosmos. Armed with a new spaceship, it is now up to Sonic the Hedgehog to hunt down Dr. Eggman and defeat the egg-shaped scientist before the Animals are doomed.
Spoilers end here.
SegaSonic Cosmo Fighter Galaxy Patrol is a 2D shoot'em up arcade ride viewed from a top-down perspective. The family-sized cabinet is designed like a spaceship with the feature of the cabinet shaking during the ride. The cabinet board has two buttons for weapons to fire projectiles or homing rockets and a lever labeled "SPEED UP", which tilts the entire ride. There is also a regular joystick on the left side of the board that maneuvers the ship which can also tilt the cabinet.
After inserting a coin, Sonic gives a speech to the player and hops into the red spaceship which gets launched from the earth's galaxy patrol station into space. Right after, Dr. Eggman appears in a small space pod to deploy bombs and obstacles at Sonic. Destroying bombs and obstacles rewards the player with stars. After arriving at the space station, Eggman will then attack with his space pod by firing projectiles or homing missiles at Sonic's spaceship after landing one of three hits. If the player defeats Eggman, he will pull back and return with a large, green space armor on his pod. The player has to destroy the homing arms of the space armor before finishing him.
If the player manages to destroy Eggman's space armor, the player is rewarded with a ship upgrade and Sonic will complete his mission to save the animal friends while Eggman flies away. Depending on how well the ride has been completed, the arcade ride rewards the player with a rating from one to five stars.