Stage (Paper Mario: The Thousand-Year Door)

Stage Ranks
Depending on Mario's level, the stage on which the battle takes place will change, increasing audience capacity and introducing new stage hazards.

Stage Hazards
Stage hazards can be broken down into three main categories based on effect and internal triggers.

Background elements
Various elements of the stage's background can fall onstage during combat, such as trees or hills. They will deal 1 damage to whoever stands in the path of the falling prompt. Some background elements such as grass are also too short to hit anyone and thus are purely cosmetic. In battle with a ceiling, the ceiling can also be knocked down, grounding all enemies on the ceiling. The exception is the Chapter 5 encounter with Lord Crump where the ceiling is impossible to knock down.

Stage nozzles
Assuming they do not miss, enemy Bob-omb explosions and all of Admiral Bobbery's moves can clear fog. Additionally, Bobbery's Appeal, Flurrie's Gale Force, and Ice Storm will also always clear fog.