Sliding Floor (すべる床) - A player who steps on this space will continue to move until he or she collides with an obstacle or lands on a non-sliding floor. While sliding, players cannot take any action, such as moving or placing a bomb.
Skull Floor (ドクロ床) - Players who step on this space will receive the Reverse Disease. Unlike a regular Skull item, this effect cannot be passed to another player or discarded by obtaining a different item. It will eventually wear off.