Mount Lineland

Mount Lineland is a mountain ahead of Lineland Road, nestled before Yold Desert. This element of geography has been used in the original Paper Mario, in which Mt. Rugged was nestled before Dry Dry Desert. In fact, the mountain's environment is also similar to Mt. Rugged, despite its lack of Monty Moles, Clefts, or even some sort of bird.

Chapter 1-2: Afoot in the Foothills
After adventuring through Lineland Road and getting used to switching from 2-D to 3-D, Mario finds out that, to cross Mount Lineland, he has to put his new skills to good use. However, there aren't too much out of the ordinary for most of the ride; that is, until he reaches Yold Town.

At Yold Town, Mario meets his Lineland counterpart, Red the Bridgemaster. Red guards the bridge leading into Yold Town, but is at first unavailable due to rolling out of the wrong side of the bed and finding himself in the 3-D dimension. With Mario's help, Red is safely returned to the 2-D dimension. Red isn't through with Mario, though; he asks the plumber, "Which color is the manliest? Red or Green?" Red stubbornly refuses to reveal the Yold Town bridge if Mario answers "Green" or "Both," but when Mario answers "Red," Red kindly reveals the wooden bridge.

After Mario proves to Old Man Watchitt that he is the hero by showing him Thoreau, the old mayor calls up Green the Bridgemaster and orders him to let Mario through. Mario visits the green-loving Bridgemaster, and Green kindly reveals the steel bridge leading out of Yold Town. However, before Mario left, Green asks him which color is better; Red, or Green. Even if Mario answers "Green", Green gets furious, because due to Mario wearing red, Green assumes the plumber was lying and kicks him out of his house. Mario removes himself from the ground, and crosses the bridge to the Yold Desert.

Enemies

 * Koopa Paratroopa
 * Koopa Troopa
 * Spiny Tromp