P-Up, D-Down

P-Up, D-Down is a badge available in Paper Mario and Paper Mario: The Thousand-Year Door, acting as a parallel to P-Down, D-Up. In Paper Mario, it is found in the Crystal Palace, in a hole being covered by a pushable Albino Dino. In Paper Mario: The Thousand-Year Door, it is found in Riverside Station, in one of the paths of the maze that can only be crossed in Mario's tube form, and can be rarely dropped by or stolen from Dark Koopatrols and Elite X-Nauts. If it is equipped by Mario, it lowers his defense by one point, increase the amount of damage he takes from all enemy attacks, but it also boosts his attack by one, increasing the damage of all of his jump and hammer attacks. The badge's effects stack if multiple copies of it are equipped, possibly even rendering Mario's defense power below 0 if enough are equipped. P-Up, D-Down P is a variation of the badge that only affects Mario's partner.

Merluvlee's prediction in Paper Mario

 * "I see...a P-up, D-down Badge. You move a small Albino Dino statue in Crystal Palace. Underneath it you find a path leading to the right. You follow that to the back room where you find a treasure chest with the Badge inside it."