Sonic Chaos is a platform game released for the Sega Game Gear in 1993. Similar to other Sonic games, it features fast-paced gameplay, with levels designed around speed and momentum. Players control Sonic or Tails as they navigate through loop-de-loops, collect rings, and defeat enemies like Dr. Robotnik's robots.  Its levels are known for their challenging designs and hidden paths.  The game was developed by Aspect and published by Sega.

Sonic Chaos (USA, Europe)

Sonic & Tails (Japan)