It is the debut of the group Chaotix. The group has five members, including Knuckles the Echidna. The other four characters were headed up with Mighty the Armadillo (Who also featured in the Arcade Game SegaSonic the Hedgehog two years earlier in 1993 ) and also featured Vector the Crocodile, Espio the Chameleon and Charmy Bee. This latter trio did not return till Sonic Heroes, in 2004 - albiet with changed personas.
In the game, two members of the group are attached by a link between two rings that the characters hold.
- Practice Stage
- Botanic Base
- Speed Slider
- Amazing Arena
- Marina Madness
- Techno Tower
A beta version of Knuckles' Chaotix, known as Sonic Crackers is widely distributed on the Internet.