Mini Mario Card

Mini Mario Cards,  also shortened to Cards, are collectible items with a picture of Mini Mario and a letter on the back of them in Mario vs. Donkey Kong 2: March of the Minis. There are nine cards in each world, and getting all of them unlocks a minigame.

All the cards together spell out "MINIMARIO." The level number of a floor corresponds to the letter on a card as it appears in "MINIMARIO" (i.e., Level 2-5 has an "M" card). Mini Mario Cards reappear in Mario vs. Donkey Kong: Minis March Again! and Mario vs. Donkey Kong: Mini-Land Mayhem!