FP Plus

FP Plus is a badge in Paper Mario and Paper Mario: The Thousand-Year Door. In Paper Mario, it is located in Pleasant Path, behind a cracked wall next to the Koopa Bros. Fortress, and Forever Forest, hidden in a branch off of the main path, and it can be bought from Rowf and Rhuff's badge shop after Chapter 4 for 150 coins. In Paper Mario: The Thousand-Year Door, it can be found in Boggly Woods, outside of The Great Tree, in Rogueport Sewers, in the room with Pipes that connect to Keelhaul Key and Poshley Heights, bought from Pianta Parlor after getting the Special Card for 100 Pianta Tokens, and dropped by Poison Pokeys, Pale Piranhas, Putrid Piranhas, and X-Nauts. If Mario equips it, it increases Mario's maximum FP by five. The effects of this badge stacks when using multiple copies of it.

Merluvlee's prediction in Paper Mario

 * "I see...an FP Plus Badge. Deep within Forever Forest, you take the path in front of a laughing rock. A red Block is waiting in the forest clearing."
 * "I see...an FP Plus Badge. It is for sale at the open-air shop in the plaza outside the castle gate."
 * "I see...an FP Plus Badge. It is outside the Koopa Bros. Fortress... ...on a high tower that's connected to another. The Badge is in a treasure chest that cannot be seen from the ground below. You reach it by blowing up a wall near the castle entrance and entering the pipe. Once you are up top, you cross the platform for the Badge."