Knuckles and Tails also featured ... it became clear that the dual-campaign approach was nothing but an anomaly. But, if the Sonic Adventure is to return — and leaks suggest it will while ...

The threequel concluded with Sonic, Tails, and Knuckles teaming up with unlikely allies Shadow (voiced by Keanu Reeves) and Dr. Robotnik (Jim Carrey) to stop the latter's father from destroying ...

Debut Appearance Sonic Adventure (1998) An ancestor of Knuckles, Tikal the Echidna debuted ... She has her own unlockable ...