Megabuster

The megabuster is Herp-A-Derp Megaman's weapon. The blasts from the buster seem to be invisible, so that no one can see it coming. He uses it to fight his enemies and sometimes even blast his "friends." This weapon is much like Mario's football legs, Buzz's laser, Winnie's Chaos Blast Attack, and Iron Man's Hand Laser.

Trivia

 * It broke in Episode 10-Herp-A-Derp Goes to the Doctor.
 * Luigi thought the Megabuster was Herp-A-Derp's crotch.
 * It apparently needs fuel to work.
 * He barely used it in Season 1, but in Season 2 and onward he used it alot.
 * It has it's own holiday.