Comedy Boss Fight Theme: Rasputin by Boney M.
This is the music that plays when you have to fight a non-serious enemy in a non-serious fashion.
Think of a knight in intimidating armor who refuses to yield even though all his limbs have been hacked from his torso.
Think of a chatty, googly eyed purple octopus that shows up at regular intervals to harass your party and ultimately decides to give up villainy for light clerical duties at a combat sports facility. Sometimes, a true friend kicks your ass right onto a new career path.
A comedy boss can also be an unlikely war machine, the pricey output of some bloated military-industrial complex, all heavy guns and precision targeting robo-vision . . . until it tries to walk down the stairs. Watch it go ass over radome. Anticlimax gives rise to laughter.
Rasputin is a prank song by a prank band, which makes it a perfect fit for a prank battle.
BONUS: For a spicier, squirtier sound, YouTube Rasputin/WAP.