The latest game in the Paper Mario series. Join Mario and the gang once again in a brand new adventure where you restore color to the world!

On a dark, stormy night, Mario finds Princess Peach and Toad at his door. Surprised, he lets them in and receives a mysterious letter. Inside the letter is a toad that has been drained of its colors. The stamp on the letter points to Prism Island, and Mario and friends quickly set off in a boat, even through a storm. Upon arrival, the marketplace is deserted, and much of the color has drained away. Toad then sets off on his own, while Mario and Peach soon encounter Huey, a mysterious talking 3D paint bucket. A scream is heard, and Mario, Huey, and Princess Peach rush toward the sound, only to find a Slurp Guy draining color from Toad. After Toad regains his color and Huey is squished into a 2D object by Mario, they set off to find the culprit.