Frankenstrike, Snare-oh, Murk Upchuck, Arctiguana and Buzzshock do not appear in the mass alien transformation scene
Chrono Spanner is revealed to be Ken Tennyson, Ben 10,000's son who used equipment given to him by Professor Paradox.
The name of Luhley's cousin, Duffy, is a reference to the late Dwayne McDuffie, who was the showrunner for Ben 10: Alien Force and Ben 10: Ultimate Alien.
This episode's original title was "Breaking Up Is Hard To Do."
Rook is promoted to Magister at the end of this episode because of his bravery. In the same instant, Fistina is offered a place in the Plumbers' Academy.
This episode's original title was "It's Heroes Time."
Skurd fixes the Omnitrix glitch that caused Rath to be naked, giving him luchadore-style clothes.
Ben 23 mentions fighting a "Dr Vegito" in his dimension. That may be his world's version of Dr Animo.
This episode's original title was "Argit and Simia".
This episode's original tile was "Usual Suspects."
Kevin's present day mutation consists of:
* Astrodactyl's right arm (lower) and right wing
* Ball Weevil's crest
* Bloxx's right arm (upper)
* Crashhopper's legs.
* Feedback's antennae
* Gravattack's left arm (upper)
* Pesky Dust's left wing
* Shocksquatch's torso, crest and face
* The Worst's left arm (lower)
* Whampire's teeth
* Kevin's hair and pants
Kevin's flashback mutation consists of:
* Arctiguana's back and fins
* Blitzwolfer's right eye
* Cannonbolt's lower arms and upper body
* Ditto's lower body and legs
* Eye Guy's eyes (two each on his arms, and one for a left eye)
* Frankenstrike's upper arms
* Snare-oh's chest bandages and crown
* Upchuck's mouth and tail
* Way Big's head fin
* Wildvine's hands, arm spikes, facial skin, and seed bombs
* Kevin's hair, facial structure, and pants
When Ben turns into Feedback, the copper bolts on his arms and shoulders are missing, and stay missing for the entirety of his appearance.
The differences in animation styles throughout the Ben 10 franchise is revealed to be because of Celestiasapiens changing the universe.
Slix Vigma (from the Ben 10 episode "Grudge Match") returns, running the Golden Fist Tournament. How he survived being impaled by Kevin 11 is unanswered.
It is revealed that Kevin doesn't have alien ancestry and that his father Devlin, doesn't exist. It was all a ruse crafted by Servantis.
Despite the Vengers saying they'll be back, they do not return in future episodes.
The true name of the Sludgepuppy race is revealed to be "Lenopans". The term "Sludgepuppy" is actually considered a slur by some members of the race.
Collectimus is aware of Ben reconstructing the universe back in "So Long, And Thanks For All The Smoothies".
Swampfire "blossoms" into a new, more powerful form.