
1) Sega Game Gear-only game 2) Sega Genesis game 3) Video game mascot
Found on
https://www.crosswordclues.com/clue/ristar

Ristar, released as Risutā za Shūtingu Sutā in Japan, is a platform game developed and published by Sega for the Sega Genesis in 1995. A Sega Game Gear game, of the same name and genre, Ristar, was also released, which shared similar themes while possessing different level design and gameplay mechanics. The game stars an anthropomorphic cartoon...
Found on
http://en.wikipedia.org/wiki/Ristar
[Game Gear] Ristar, known as Risutā za Shūtingu Sutā in Japan, is a platform video game released by Sega in 1995 for the Sega Game Gear. While sharing themes and gameplay elements from its main counterpart, Ristar, for the Sega Genesis, it is a largely different game. The game was well received by critics, who felt the gameplay mechanics...
Found on
http://en.wikipedia.org/wiki/Ristar_(Game_Gear)
No exact match found.