Grab Block

Grab Blocks, also referred to as Blue Blocks, are dark-blue blocks resembling Rotating Blocks appearing in Super Mario World, first appearing in Yoshi's Island 2. Grab Blocks can be picked up and carried around by Mario or Luigi, disappearing after a few seconds. Once grabbed, a Grab Block begins to flash colors, and can be kicked away to defeat enemies or reach distant Prize Blocks. Yoshi can eat Grab Blocks, though only after they have been activated, and he simply swallows them. A minor glitch occurs if the player takes a Grab Block through a pipe, which causes it to last indefinitely.

A similar type of block known as the White Block has previously appeared in Super Mario Bros 3. They can be picked up, carried and thrown much like a Grab Block, but resemble a white or light-blue Brick Block. In New Super Mario Bros. Wii, a type of Ice Block has the same role as both, though they are slippery and do not self-destruct.