Rubee

Mario discovers one million Rubees.

A Rubee is a type of currency found in Super Paper Mario. They resemble small red gems, as do Flipside Tokens. Their name may be a combination of "rubies" and "Rupees", the currency in The Legend of Zelda series.

In Chapter 2-3, Mario breaks a vase belonging to Mimi, under the guise of Merlee's maid. Mimi orders Mario to pay for the vase in Rubees — one million of them, to be exact. Mario only had Coins on him, however, so Mimi puts him to work to pay off the debt. Mario starts off working just like the other captives. He starts working in generator rooms to earn Rubees but soon discovers a massive hoard of Rubees with the help of Slim, allowing him to pay off the debt.

Later, Mimi used Rubees to attack the heroes, dropping them on the heroes. They stick in the floor on impact. Even in this state they are a threat, as they impede the heroes' movements and damage the heroes if they jump on them. However, despite their spiky nature, they can be carried with Thoreau and then thrown at Mimi.