Plot: SegaSonic Cosmo Fighter, 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...
Plot: SegaSonic Popcorn Shop is an arcade vending machine released in 1993, exclusively in Japan. Created by Sega AM1 and released by Sega, it is a combination of a popcorn machine and a mini-game on Sega's C-2 board, a hardware similar to the one on the Sega Genesis.
Plot: Waku Waku Sonic Patrol Car is a children ride released in December 1991 exclusively in Japan. The arcade ride is part of Sega's Wakuwaku line and features Sonic the Hedgehog playing the role of a police officer, patrolling the streets of a city and keeping it safe from Dr. Eggman.
Plot: Sonic Eraser is a video game in the Sonic the Hedgehog series that was available to owners of the Sega Game Toshokan on Sega Mega Modem with Sega Meganet subscription. All the three aforementioned enhancements for the Sega Mega Drive are exclusively released in Japan..
Plot: Wacky Worlds Creativity Studio is a video game for the Sega Mega Drive developed by HeadGames and published by Sega released in 1994 under the Sega Club line for younger children.
Plot: Sonic the Hedgehog's Gameworld is a game developed by Aspect Co. Ltd for the Sega Pico. It is a party game featuring Sonic the Hedgehog, Miles Tails Prower, Amy Rose, and Dr. Robotnik/Dr. Eggman, and features many different mini-games. It was released in Japan in August 1994.
Plot: SegaSonic the Hedgehog is a 1993 arcade game in the Sonic the Hedgehog series by Sega. Controlling Sonic the Hedgehog and his friends Mighty the Armadillo and Ray the Flying Squirrel, the player must escape an island as quickly as possible after they are kidnapped by series antagonist Doctor Eggman...
Plot: Sonic Crackers, also known in the ROM header as Sonic Studium, is an early Sonic the Hedgehog prototype game for the Sega Mega Drive/Genesis. It is believed to have been an engine test, containing essentially multiple different game engines, swapped out in realtime using code written into RAM.
Plot: Sonic's Schoolhouse is an educational computer game that teaches young learners mathematics, reading, and spelling, released in 1996 by Sega Entertainment in collaboration with BAP Interactive and Orion Interactive.
Plot: Sonic X-treme was a platform game developed by Sega Technical Institute from 1994 until its cancellation in 1997. It was intended to be the first fully 3D Sonic the Hedgehog game, taking Sonic into the 3D era of video games, and the first original Sonic game for the Sega Saturn. Wikipedia