Prismantus

is the boss of the TFH: in. It is similar to the boss TFH:, but has three, colored light bulbs at its sides.

Characteristics
TFH: will spin wildly after the TFH:. It will periodically stop to seek its next target while spinning in place. The colored light bulbs at its sides are its weak points during this stage, and can only be damaged by the TFH: whose tunic corresponds with the bulb's color. As its body is constantly spinning, the TFH: must carefully time their attacks to strike the right bulb. After a bulb takes enough damage, it will shut off. After all of its bulbs are shut off, TFH: will be stunned and its spinning halts. The TFH: can then form a TFH: to throw one TFH: up to its eye and strike it. It is also possible to hit its eye by standing close to it with two TFH: stacked on top of each other. Its colored lights will eventually come back on.

In the second phase, TFH: turns to its side and starts rolling around the room. It will eventually stop momentarily, allowing the TFH: to easily strike its light bulbs. Shutting them all off stuns TFH: again. In the third phase, TFH: stands up and charges a powerful beam. It will fire this beam around the room, before continuing to roll again and stopping only to fire another beam. The TFH: must again strike its light bulbs to stun it, although this time the TFH: must form a TFH: of three to strike its upper bulbs while it fires a beam. It will be defeated after several more hits.

Nomenclature
TFH:'s Japanese name is onomatopoeia of the booming noise it makes when it moves. This was the original Japanese name of TFH:, but was changed as it fitted TFH: better.

TFH: also had several Japanese names during developement, including and Cyclops.