! Block

! Blocks are found in Super Mario World. They are at first invisible, but after Mario or Luigi hits one of the ! Switches at the Switch Palaces, they become ! Blocks which contain various power-ups. Yellow blocks contain mushrooms, green blocks contain cape feathers (or, if you are tiny Mario, a mushroom), and red and blue blocks contain nothing, but may add in extra paths to a short-cut or a secrete room.

In Super Mario 64, '''! Blocks''' come in four different colors. Yellow ones contain coins, Stars, 1-Up Mushrooms, or Koopa shells. Red ones contain the Wing Cap, blues the Vanish Cap, and greens the Metal Cap. All except the yellow kind must be activated by activating the corresponding ! Switch.