It gives the newly introduced Knuckles the Echidna the starring role, alongside a new group of characters informally known as the 'Chaotix', collectively stopping Dr. For the group of characters, see Chaotix (characters) and Team Chaotix.Ĭhaotix (カオティクス), known as Knuckles' Chaotix on western packaging and Chaotix: Featuring Knuckles the Echidna (カオティクス ~FEATURING ナックルズ ザ エキドゥナ~) on Japanese packaging, is a Sonic the Hedgehog-related game released for the Sega 32X in early 1995.