Dugger

Unknown Alien is a new confirmed alien in Ben 10: Ultimate Alien MEGATRIX. He was first announced in the episode Question For Ben 10: Ultimate Alien MEGATRIX by Ben when he unlocked it for Brian. Because the episode was non canon Brian will not have Access to it though he is a real alien.

Appearance
TBA

Powers
TBA

SPOILER ALERT!!!
A power he will have is super speed but only when he is in a certain place.