? Block

The '''? Block (known as the Mystery Block in Super Mario Land and Prize Block' in Super Mario World) is one of the many blocks found in the Mario'' universe, and one of the most common. ? Blocks are usually seen floating in midair, often containing Gold Coins, Super Mushrooms, or Fire Flowers. In some games (for example Paper Mario and Mario & Luigi: Superstar Saga, as well as several classic platformers) there are some invisible ? Blocks. Super Mario Bros. 3, the game shows different ways to hit the block other than simply punching it from below. One example is when Mario or Luigi use the Tanooki Suit, the Mario bros. can use their tails to whack the ? Block. Another example is by using the Koopa Shell, when Mario or Luigi kick the Koopa Shell to the ? Block; the ? Block will pop out containing a Coin or an item. In New Super Mario Bros. and New Super Mario Bros. Wii, a Ground Pound may also be used.

Much mystery enshrouds the ? Blocks, and little detail has been given about their origin. Super Mario Bros., however, gave the explanation that Bowser, using the Koopa Clan's famous dark magic, had cursed the Mushroom Kingdom, turning its citizens (presumably the Toads) into a variety of objects, including bricks (which the ? Blocks could alternately be thought of as). The game's manual later talked about how Mario could "come across Mushroom People who had been turned into bricks" and receive items from them. Although this is the only official history origin of the ? Blocks, it would appear to have been long retconned out of official Mario games, with ? Blocks now seemingly being a natural feature of the Mushroom Kingdom. ? Blocks are not to be confused with ! Blocks, which are similarly floating blocks.

History
? Blocks first appeared in the original Super Mario Bros., and have been featured in almost every major Mario title since, including Super Mario Bros. 3, Mario Land and most recently, New Super Mario Bros. Wii.

Super Mario World
The ? Blocks of Super Mario World had eyes and seemed to be reanimations of that game's Turning Blocks. They also gave Turning Block-like angry eyes when hit; these expressions-when-hit are often seen even in non-eyed ? Blocks today, making the ? Block a possible relative of the Turning Block.

Super Mario 64 DS
In Super Mario 64 DS, red ? Blocks replace the red, blue, and green ! Blocks. They are initially transparent, and had to be activated by hitting the ? Switch. They contain either Power Flowers, Feathers or Bob-ombs, depending on character and hat status.

New Super Mario Bros.
In New Super Mario Bros., red flying ? Blocks fly around the world map, moving to different levels every time Mario or Luigi die or complete a level. Five items can be inside: a Fire Flower, 1-Up Mushroom, Mini Mushroom, Mega Mushroom, or a Blue Shell.Also in two Ghost Houses a ? block appears but contains a Boo. The original yellow ? Blocks also appear.

Super Mario Galaxy
In Super Mario Galaxy, ? blocks contained Star Bits and coins, and could usually be hit multiple times before vanishing. If the player manages to hit a ? block with star bits enough times, it would, as aforementioned, vanish, though when it does a multitude of star bits will scatter across the stage.

Paper Mario series
In the Paper Mario series, Red ? Blocks contain badges and yellow ones contain coins or items. ? blocks are sometimes invisible at first. They are turned visible by jumping into them (or using Watt in Paper Mario). Once they're visible, they can also be used as stepping stones.

In Paper Mario: The Thousand-Year Door during Bowser's event, Meat will come out. If the player obtains four of these Meats, Bowser will grow huge, allowing him to smash through objects.

Mario Kart series
From Mario Kart 64 and onwards, similar item blocks, called Item Boxes are found on every track. However, they are not flying up in the air but they are floating on the ground.

In Mario Kart Wii, on the track Coconut Mall, there is shop that is selling ? Blocks along with other classic Mario items. In the track Grumble Volcano, there are giant ? Blocks on some of the sinking mountains, along with regular Brick Blocks.

Super Smash Bros. series
In Super Smash Bros. Melee, ? Blocks appeared on the Mushroom Kingdom stage and could contain items if smashed from below. They also appear in Super Smash Bros. Brawl in the Mushroomy Kingdom stage, with the same purpose.

Mario & Luigi series
? Blocks were one of many types of block to appear in this series.

In Mario & Luigi: Superstar Saga, there is a room in the Woohoo Hooniversity which is designed to study different kinds of ? Blocks.

Mario & Luigi: Bowser's Inside Story featured a character named Broque, who appears to be made from ? Blocks.

Trivia

 * In Yoshi's Story, there is mini-game game called Melon Race in which Yoshi must hit a ? Block and race a melon-eating Chain Chomp.
 * The ? Block is a piece of furniture that the player can buy in the game Animal Crossing for the Nintendo GameCube.
 * In all Nintendogs games, it is possible to get a ? Block item.