Sonic the Hedgehog (16-bit)

Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ) is a 16-bit platformer video game for the Sega Mega Drive, developed by Sonic Team and published by Sega. It first released in the United States on June 23, 1991 collectively in the Japan and Europe as a pack-in title for the Sega Mega Drive. One month later it released in Japan on July 26, 1991. It is the first installment in the Sonic the Hedgehog series and would continue with a direct sequel Sonic the Hedgehog 2.