Head Thwomp

is the OoA: of the OoA: in. It is a variant of a OoA:.

Characteristics
OoA: is battled in a side-view section of the OoA:. It floats in the center of the room, constantly rotating between its four faces of different colors and expressions. Three small platforms that OoA: can jump onto with the OoA: float in a circle around OoA:, and ladders on the sides of the room allow OoA: to climb to a higher vantage point.

OoA: is immune to all attacks except for NaN Bombs thrown into its open top. When this happens, OoA: will begin rotating quickly for several seconds, slowing down and eventually stopping with one of its faces forward; the same face that was shown when the OoA: entered it. If the red face is shown, OoA: will take damage and drop a OoA: out of its mouth, whereas the other three faces will cause it to attack in various ways. The green face will see OoA: fire NaN Podoboos from its top, which then rain back down on OoA:. The blue face makes it fire several smaller fireballs, which spin around the room in the path of the floating platforms, harming OoA: and knocking him off of them. The purple face makes it slam downward like a regular OoA:, crushing OoA: and causing rocks to fall from the ceiling.

OoA: will periodically fire NaN Podoboos on its own, sometimes also firing a OoA: item among them that OoA: can collect to replenish his supply. OoA: must time his jumps to dodge OoA:'s attacks and throw NaN Bombs so they land when its red face is showing. After taking damage four times, OoA: will be defeated and will make one final slam onto the ground before disappearing, leaving behind a OoA: and a path toward the OoA:.