Overdrift

With Your Powers Combined is a Challenge Act that appears in the console/PC versions of Sonic Generations.

Description
The player takes control of Modern Sonic in Speed Highway, and there are no supporting characters.

The player needs to get to the goal within a given time limit. Due to the layout of the challenge act's stage, the stage makes big use of the Drift ability, which is needed to use in order to finish the stage with a high rank.