Mega ? Block
It has been requested that this article be rewritten and expanded to include more information. Reason: 14:30, 19 May 2017 (EDT)
Giant ? Blocks[citation needed] (or Giant Question Blocks[citation needed]) are ? Blocks that are twice as big, first found in Super Mario Bros. 3 and its remakes. They are found mainly in the game's World 4 (Giant Land), but can also be found in certain secret areas throughout the game. They contain regular power-ups or coins in Giant Land, and three 1-Up Mushrooms or one of the game's three Suits (the Tanooki, Frog, and Hammer Suits) in bonus areas. While they couldn't be tail whipped at all in the NES and All-Stars versions, Super Mario Advance 4 makes it so Raccoon or Tanooki Mario can tail whip Giant ? Blocks in normal courses.
History
Super Mario series
Super Mario Bros. 3 / Super Mario All-Stars / Super Mario Advance 4: Super Mario Bros. 3
New Super Mario Bros.
Giant ? Blocks are also found in Mega Mushroom Toad Houses in New Super Mario Bros., where they give Mario or Luigi a Mega Mushroom.
New Super Mario Bros. Wii
Giant ? Blocks re-appear, albeit rarely, in New Super Mario Bros. Wii. They only appear in World 6-5, floating on water.
Super Mario Galaxy 2
In Super Mario Galaxy 2, they appear in the Supermassive Galaxy. Mario and Luigi are unable to hit these blocks (as they are too large), and they are merely used as platforms throughout the level.
New Super Mario Bros. U / New Super Luigi U // New Super Mario Bros. U Deluxe
Giant ? Blocks return in New Super Mario Bros. U as blocks in various Soda Jungle courses.
Mario & Luigi: Bowser's Inside Story / Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
In Mario & Luigi: Bowser's Inside Story, Broque Monsieur has a Giant ? Block in his collection, but it is unusable throughout the game.
Mario Kart Wii / Mario Kart 8 / Mario Kart 8 Deluxe
Giant ? Blocks also appear in Mario Kart Wii, Mario Kart 8, and Mario Kart 8 Deluxe. They appear in Grumble Volcano in all three games.
Paper Mario: Color Splash
Giant ? Blocks appear in Paper Mario: Color Splash in Mondo Woods. They are normal ? Blocks that were enchanted by Kamek.