Hidden World

Hidden World is the eighth world in the Wii U version of Sonic Lost World. It is unlocked after finishing the previous world, Lava Mountain. Unlike other worlds in the game, Hidden World has abstract backgrounds and does not appear in the game's storyline.

Zone One
The player begins on a large cube with a time limit of 28 seconds. Each side of the cube consists of 49 red, blue, orange, yellow, white, and green tiles. A box with eyes is located on each of the cube's six sides. The box, after a few seconds, turns on its side, flipping over several tiles, which could hurt Sonic should he step in the way. Sonic destroy the box with a Homing Attack in order to save an animal, add ten seconds to the time limit, and continue to the next side. This continues until Sonic loses all his rings or runs out of time, when the zone is cleared and Sonic's score is tallied.

Zone Two
In this zone, the player controls Tails in the Tornado, with Sonic standing on the biplane's wing. The player must steer around Badniks (most of which appeared in Sky Chase Zone) and obstacles in order to make it to the finish, collecting extra time and speed boosts along the way.