|Body type:||Small Humanoid|
|Abilities:||Flight, Creating Sickness|
Headache is an additional in Ben 10: MEGA Alien.
Headache is a 4.5 ft humanoid alien. He wears black and white pants and is made of orange goo. He is constantly dripping of goo.
Like Goop, Headache can become a puddle of goo. He has the ability to fly and shoot goo that, on contact, makes his opponent sick or gives them a headache.