G Sonic japanese box art (aka Sonic Blast).
Sonic Blast is a video game in the Sonic the Hedgehog series developed by Aspect and published by Sega for the Sega Game Gear. It is known as G Sonic in Japan. It was released in December 1996 for both North American and European markets. A Japanese release followed later that year on December 13, being the last commercial title released for the system. (from Wikipedia)