"This powerful leg weapon launches hot napalm, but leaves you open."
―In-game text, Mega Man Maverick Hunter X

Bumpity Boom (バンピティブーム Banpiti Būmu) is a Leg-type napalm weapon that is available for Vile by default in the game Mega Man Maverick Hunter X. When equipped, Vile shoots a grenade out of his knee that rolls along the ground and explodes after it goes a preset distance. He can shoot them from the air as well (but they explode at a preset distance, not necessarily when they hit the ground). Bumpity Boom cannot be used while moving; Vile has to stand still in order to use it. The player can use this while on a ladder, but Vile will fall off the ladder as a result.

Bumpity Boom is available from the start of the game along with two other weapons: Cherry Blast and Front Runner. X takes a decent amount of damage from Bumpity Boom.

Damage data chart

Damage values in units for Mega Man Maverick Hunter X.

MHX-Icon-Vile-Leg-BumpityBoom.png Bumpity Boom
Boss Damage
Mega Man X 8
Chill Penguin 4
Spark Mandrill 4
Armored Armadillo 4
Launch Octopus 4
Boomerang Kuwanger 4
Sting Chameleon 4
Storm Eagle 4
Flame Mammoth 4
Bosspider 4
Rangda Bangda 4
Mega Man X 1*
Zero 1
  • Any damage value marked with a "*" means that the weapon will cause a weakness reaction for that boss.
    • In Mega Man X's case, in his second encounter in Sigma Palace, any damage entries marked with a "*" will break through his Rolling Shield.



  • Bumpity Boom refers to the rumbling explosion this napalm creates.