World of Nothing

The World of Nothing is the setting of Chapter 6-1 after The Void obliterates Sammer's Kingdom from Super Paper Mario. Due to the destruction from The Void, the World of Nothing is only a blank, white screen, with the occasional remains of Sammer's Kingdom in a silhouette format. The player is allowed to visit the World of Nothing until they have beaten the game; by that time all of the destroyed worlds will return back to normal.

Chapter 6-1 (Untitled)
After defeating Mimi in Chapter 6-2: The End of a World, the heroes realize that she had been delaying them from claiming the Pure Heart before the Void destroys Sammer's Kingdom. They try to continue on to the king anyway, but realize that they are too late as soon as they notice the Void has expanded to the point where it consumes the entire dimension. Fortunately, Tippi manages to transport Mario, Princess Peach and Bowser back to Flipside to save the heroes.

Still needing the Pure Heart that King Sammer had possessed, Mario and the others decide to try reentering the Blue Door, confused as to why it still remained. To their horror, they find Sammer's Kingdom completely obliterated. All that remains is a blank, white void with a line for the ground, out of which sticks a few outlines of ruins. Mario and the others walk onwards through the abyss, eventually finding the Pure Heart, which is now lifeless and turned to stone. Mr. L appears to steal the Pure Heart, and Mario and the others battle him to obtain the Pure Heart. He uses an improved model of the Brobot, the Brobot L-Type, to fight, but is eventually defeated. Mario and the others then return to Flipside to consult Merlon about what to do with the dead Pure Heart.

Shortly after they leave, Mr. L returns to consciousness and is visited by Dimentio, who gives him a Game Over, sending him to The Underwhere (and reverting him back to Luigi in the process). Dimentio then appears before Mario, Peach and Bowser in Merlon's house, granting all three of them Game Overs as well. While they were in The Underwhere, Mario finds Queen Jaydes, who repowers the broken Pure Heart so that the heroes can continue on in their quest to destroy the Void and save the world.

Enemies

 * Brobot L-type (Chapter 6 Boss)