Dagger Alien

"Dagger Aliens" are an unnamed species first seen in the videogame Ben 10 Alien Force: Vilgax Attacks. They later make appearances in various of Ben 10: Alien Force and Ultimate Alien as incidentals.

Appearance
Dagger Aliens are fat aliens with blue, yellow or green skin, muscular arms and legs, black spots, black spikes on their heads, and yellow eyes.