Boltboutamon

Boltboutamon is a Demon Lord type Digimon. The "Malevolent Fist", born from malice data forcefully absorbed Myotismon into Piedmon. It is the source of all evil.

Attacks
 * Pernicious Waltz : Torments the enemy before piercing it from every direction

Digimon World Next Order - International Edition
Boltboutamon appears in Digimon World - International Edition as a special DNA digivolution for Piedmon and Myotismon, unlocked by completing the special DLC scenario "The Malevolent Fist". He is classified as a special Mega in the western release (also known as Ultra in other dub materials such as Digimon Story: Cyber Sleuth)