A long time ago, the Flat Kingdom was threatened by the Third Dimension. But just when all hope was lost, a wise sorcerer appeared and created six Magical Jewels! Keeping the dimension stable and restoring peace. Until one day… The masked thief Hex kidnapped the princess, also taking one of the Jewels with him! That caused the 3D chaos to come back, putting the kingdom in serious danger again! When everything seemed to be lost, King Square knew that there was only one being able to save the day! Meet Flat! A brave little 2D hero who can change his shape at will! Transforming into a circle, a triangle, or a square… he can overcome all kinds of obstacles and beat his geometric foes! Now it’s your time to learn and master new skills… fight giant bosses to recover the Jewels and save the Flat Kingdom!