Sonic Generations (with extra voices!) Episode 18: Super Sonic versus Time Eater

Sonic has reached the final portal, and at last encounters the massive Time Eater. As it turns out, Vector's hunch was correct as the beast is in fact being controlled by Dr. Eggman and his past self, Dr. Robotnik (I still call him that). With all seven Chaos Emeralds on hand, the two heroes must use their super forms as a team to bring down the monster once and for all...