Coin Box

Coin Boxes, formerly known as '''? Boxes', are objects introduced in Super Mario 3D Land''. Characters that wear them will receive a limited amount of coins as they walk.

Super Mario 3D Land
In that game, they are only found in World 8-1, World 8-4 and Special 1-3. ? Boxes look just like ? Blocks. Like Propeller Boxes, they are worn by Mario or Luigi on their head, and do not let them throw fireballs or boomerangs, or turn into a statue. It cannot be taken off unless they hit an enemy. If Mario makes it to the Goal Pole with the ? Box, it disappears and gives an extra life. While inside a ? Box, coins will pop out from it while he is moving, although the ? Box will disappear after a certain amount of coins are produced.

New Super Mario Bros. 2
In New Super Mario Bros. 2, similar objects known as Gold Blocks appear, which are revealed by hitting Coin Blocks enough times, and give Mario coins at a much faster rate than the ? Boxes. Unlike ? Boxes, however, a Gold Block will disappear once 100 coins have been collected from it.

Super Mario 3D World
? Boxes return in Super Mario 3D World, now shinier than a regular ? Block. This time, they work just like Gold Blocks from New Super Mario Bros. 2.

Mario Kart Tour
Coin Boxes reappear under their current name in Mario Kart Tour as Mario (Hakama)'s special item. They spew coins onto the track when used. During a Coin Box Frenzy, coins surround the player. Coin Boxes received a minor redesign in that their edges and corners are more flat rather than rounded, and the holes in their sides' corners are absent.