With Your Powers Combined is the first Challenge Act of Planet Wisp Act 1 in the console/PC version of Sonic Generations. It is unlocked after clearing every Stage in the modern era and is playable only as Classic Sonic.
The player is given many constantly-regenerating monitors that are scattered all throughout the stage. All of these monitors will contain one or another of the elemental shields; Flame Shield, Aqua Shield, and Thunder Shield. Using the various jumping capabilities in combination with the protection of the elemental shields, the player needs to make it to the fire and lightening infested course.