Doormensional

 is the Negativitrix's DNA sample of a Sentientsapien from the planet Dischronia in Earth-1010.

Appearance
Doormensional is a brown, headless, three-legged humanoid with two grey faces on his shoulders. There is a stump where his neck should be. His arms end in claw-like tendrils. He has three spikes on each side of his stomach. The Negativitrix symbol is on his chest.

Powers and Abilities
Doormensional's main power is the ability to literally jump out through the fourth wall whenever he is in danger, and into any dimension where his actions are being observed (even ours). He can also teleport across the same dimension as the one he is in, but again only next to those that are observing him.

The two faces do not have different personalities, just different points of view.

Weaknesses
Doormensional's powers cannot be used to see his own future due to his involvement in Timekiller's new Time War. This is fine, however, as Albedo already knows all he needs to of his future thanks to both Timekiller and his previous experience as an Evolved Galvan with Azmuth's intelligence.

he is also a weak fighter in one-on-one combat, hence the use of his primary power.

Ben 10: Road Trip
is one of the eight aliens available in Albedo's Negativitrix as it was created. He was used in Time Trials to enter the Crucible's main vault when he was summoned by Timekiller.

Albedo

 * Time Trials (first appearance)