[s4e23] Let's Do The Time War Again -

is an episode of Ben 10: Omniverse , often listed as Season 8, Episode 3 (or Season 4, Episode 23 depending on the platform). The episode follows Ben, Rook, and Skurd as they become trapped in a series of time loops while trying to prevent a catastrophic "Time War" from destroying Bellwood. Episode Summary

: The time-traveling mentor who manages the loop.

: Professor Paradox and Ben 10,000 arrive to reverse time and guide Ben and Rook through the chaos. [S4E23] Let's Do the Time War Again

: Ben's future self, who uses the Biomnitrix to fuse alien forms.

: A fusion of Crashhopper and Shocksquatch used by Ben 10,000. is an episode of Ben 10: Omniverse ,

: Creatures that can turn objects to dust with a touch and manipulate the local flow of time. Notable Alien Transformations

: In the first attempt, Ben's electrical powers as Feedback collide with a Time Beast’s temporal energy, freezing Bellwood in time. : Professor Paradox and Ben 10,000 arrive to

This episode is popular among fans for showcasing several unique fusions and transformations: