A Boo Blah is a kind of ghost that appears in Super Mario World 2: Yoshi's Island. This creature sticks to the ceiling or the floor and jumps up periodically. A large majority lives inside Bigger Boo's Fort along with other spirits and Boos. They are generally invincible but are not a major threat, as they only hurt the player if they somehow make contact with him or her while jumping up. Stomping them stuns them for a brief period of time. They can be defeated by using a POW Block or a cloud item.
 Names in Other Languages