Play It Back Again

Plot
In the POTO timeline, Khyber is in his ship.

(Khyber): I have done it. My plan is fully thought out. Mutans, assemble!

His Nemetrix fusions arrive.

Characters

 * Ben Tennyson (POTO, BTHU and BTUP)
 * Gwen Tennyson (POTO, BTHU and BTUP)
 * Kevin Levin (POTO, BTHU and BTUP)
 * Rook Blonko (POTO, BTHU and BTUP)

Villains

 * Khyber (POTO)
 * Crablizard (first appearance)
 * Muci-Worm (first appearance)
 * Terrorpede (first appearance)
 * ThundoTick (first appearance)
 * Hackvoracious (first appearance)

Trivia

 * This is the first Ben 10: Heroics Unleashed crossover.