Squishy block

Squishy blocks are movable platforms that appear in Super Mario World 2: Yoshi's Island and its reissue. They are pinkish-orange blocks that move when pushed. When pushed against a wall, they squish against it, growing taller and thinner. When they are ground-pounded, the inverse happens. This is an easy way to transport items over spikes. Squishy blocks are very rare, and they appear in only three levels, being Chomp Rock Zone, Sluggy the Unshaven's Fort, and King Bowser's Castle. In the Game Boy Advance reissue, there is a translucent squishy block in Endless World of Yoshis, bringing the total to four.