In Sonic Runners, these characters were the earliest ones to become available via the Premium Roulette, with all its members being introduced at the same time. In this game, members of this type receive a 50% Ring bonus in gameplay.
Sonic Runners Adventure
In Sonic Runners Adventure, Chaotix Types are again optional characters, which can be unlocked in exchange for Rings. Chaotix Type characters in this game can convert 30% of the Rings in the levels into Super Rings (which are worth ten Rings) for a limited time after collecting 300 Rings.