The Ultimate Sacrifice

Ultimate Sacrifice is the thirty ninth episode of Ben 10: Ultimate Alien and the seventh episode in the third season.

Plot
Ben is faced with a serious internal problem when the aliens that live inside of his Ultimatrix rise up and begin to revolt against him, causing him to try to find a way to meet their demands and restore a sense of order.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Azmuth

Villains

 * Ultimate Humungousaur
 * Ultimate Swampfire
 * Ultimate Spidermonkey
 * Ultimate Cannonbolt
 * Ultimate Echo Echo
 * Ultimate Big Chill

Aliens Used

 * Way Big
 * Heatblast
 * Diamondhead
 * Brainstorm
 * Humungousaur
 * Ultimate Humungousaur
 * Ghostfreak

Trivia

 * It was confirmed by IGN here.