Briefcase

The Briefcase is an item in Paper Mario: The Thousand-Year Door. In the game, it belongs to the Ratooey Businessman on the Excess Express, and it has information about the Nitro Honey Syrup. During the events of Chapter 6, it is stolen by Doopliss while Mario and his teammates are aboard. The businessman then asks Pennington for help, who deduces that someone has stolen the briefcase along with the Gold Ring and the Shell Earrings to bomb the train with Nitro Honey Syrup. After Mario catches Doopliss disguised as Zip Toad, he returns the briefcase to Mario, who in turn returns it to the businessman.

If the player refuses to return the briefcase by pressing at the item select menu, the businessman will ask Mario to do so, and the player will face the item select menu again.

Later, during the businessman's trouble, he forgets the unlocking password of the briefcase. The password is the number of chairs in Kroop's house, Flurrie's house, Don Pianta's office, and Toodles's house, 2625.