Mystery Box

Mystery Boxes are boxes Mario can access in Super Mario 3D Land. They are found in most Worlds of the game, and contain various different tasks, such as defeating all the enemies in the box within ten seconds. When Mario completes the tasks, he will receive items such as Coins, 1-Up Mushrooms or a Star Medal. Friends via StreetPass can also send the player their Mystery Boxes for him to try out.

Mystery Boxes can also be golden in the inside. Most of the golden-sided Mystery Boxes have two Star Medals in them, and many 1-Up Mushrooms. Mystery Boxes can contain many different things, such as Poison Mushrooms, Toads, or even P-Wings.

After completing a Mystery Box, it turns gray, "falls asleep", and is inaccessible. It may be accessed again 24 hours later.