Thunder Shield Challenge

Thunder Shield Challenge is a Challenge Act that appears in the console/PC versions of Sonic Generations.

Description
The player takes control of Classic Sonic in City Escape, and there are no supporting characters.

The player is given a monitor containing the Thunder Shield power up, which they need to use to get through the challenge within the given time limit. Due to this, the stage layout caters to the shield's powers, with electric obstacles in the way and high areas that can't be reached without the double jump. Upon completion of this act, the player can buy the Thunder Shield skill in the shop.