- This article is about the objects in the Paper Mario series. For information on yellow blocks from Super Mario 64, which are sometimes known as ! Boxes, see ! Block § Super Mario 64 / Super Mario 64 DS.
Yellow blocks (also formatted as Yellow Blocks) are objects seen in the Paper Mario series; they can be destroyed with the basic hammer. In Paper Mario and Paper Mario: The Thousand-Year Door, they are not very hard to get by, with stone blocks and metal blocks presenting more difficult obstacles. In the latter game, however, a new type of yellow block is also present, being much larger, having angry eyebrows, and requiring a swing from the Super Hammer in order to be destroyed. In the original Paper Mario, Kammy Koopa is shown summoning one of these in to interfere with Mario's progress, as well as to fight Twink and Princess Peach while Mario and his team are in the middle of their final battle with Bowser on the Power Platform atop Peach's Castle.
Names in other languages