Vilgax Must Croak

Vilgax Must Croak is the twenty-fourth episode of Ben 10: Omniverse.

Plot
Ben and Rook have to escort Vilgax to a maximum-security prison planet, but the Incursions have other plans.

Major Events

 * Sixsix and Vilgax make their Omniverse debut.
 * Eighteight makes her debut.
 * Vilgax escapes from custody.

Characters

 * Ben Tennyson
 * Rook Blonko
 * Max Tennyson
 * Plumbers
 * Hobble

Villains

 * Attea
 * Sixsix (first re-appearance)
 * Sevenseven
 * Eighteight (first appearance)
 * Incursion
 * Milleous

Neutral

 * Vilgax (first re-appearance)

Aliens Used

 * Kickin Hawk
 * Cannonbolt
 * Terraspin
 * Gravattack (accidental transformation, selected alien was Rath)

Errors

 * Right as Cannonbolt was about to first roll into a ball, his entire body was yellow.
 * At one point Attea's eyes are white instead of the normal yellow color.
 * In one scene where Rook was trying to land the ship, the "10" on Ben's jacket was missing its black outline.

Trivia

 * The Prison is similar to the "Prison 42" from the TV show The Avengers: Earth's Mightiest Heroes and also, the Plumber Headquarters.
 * Gravattack's name is revealed in this episode.
 * This is the first time Sixsix is seen with Sevenseven.
 * Steve Blum reprises his role as Vilgax
 * Like SevenSeven, SixSix barely changed aswell.
 * Derrick was intending Vilgax to look like his original self (for instance the respirator), But Matt Youngberg thought UAF's had more personality.