Night of the Living Nightmare

Night of the Living Nightmare is the fourty-nine episode of Ben 10: Ultimate Alien and the seventeenth episode in the third season.

Major Events

 * Albedo returns.
 * Ultimate Kevin and Aggregor reappeared in Ben's dream.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin

Villains

 * Albedo
 * Dream Eater
 * DNAlien (in dream)
 * Vilgax (in dream)
 * Aggregor (in dream)
 * Hex (in dream)
 * Gwen Tennyson (in dream)
 * Kevin Levin (in dream)
 * Julie Yamamoto (in dream)
 * Ship (in dream)

By Ben

 * NRG
 * Four Arms
 * Goop
 * Ultimate Spidermonkey
 * Lodestar
 * Eatle
 * ChamAlien
 * Ampfibian
 * Swampfire
 * Fasttrack

By Albedo

 * Fasttrack
 * ChamAlien
 * Big Chill
 * NRG
 * Brainstorm

In Albedo's Dream

 * Water Hazard
 * Ultimate Cannonbolt
 * Upchuck
 * Diamondhead
 * Ultimate Humungousaur
 * Ultimate Swampfire
 * Lodestar
 * Armodrillo
 * Ultimate Echo Echo

Errors

 * When Lodestar's head was knocked off his body, his body should have followed, as seen in Hero Time.
 * Ben somehow turned into Ultimate Spidermonkey without turning into Spidermonkey.

Trivia

 * The whole episode was directed in the way that Ben was having the nightmare; however, it is revealed at the end of the episode that the whole thing was Albedo's nightmare.
 * All of Ben's main threat's (besides Hex) from Alien Force and half of Ultimate Alien appear in this episode.
 * Ampfibian's transformation sequence is changed.
 * It is revealed that when Lodestar's head isn't with his body, his body can't see.
 * This is the second time a villain attacked Ben through his dreams, the first person to do that is Enoch in Perfect Day.
 * This is the first time that Ben turns into an Ultimate before turning into the regular form first. However, since it wasn't actually Ben and was just a conception in Albedo's dream, it could have just been a thought falter.
 * Ben defeats Albedo the same way he defeated Enoch in Perfect Day. He realized he was dreaming, took control of his own mind, and overpowered his foe without using any transformations (Ultra Ben doesn't count).