Showdown: Part 1

Showdown: Part 1 is the twenty first episode of Ben 10: Omniverse.The start of the episode a galvan guide show around the galvan prime museum then she revaled a galvan predator that no galvan can ever defeat a Omnivoracious. After Khyber, Malware and Dr Psychobos break in and 2 Guards tryed to stop them but malware kill them. In underground town Rook Blonko and Ben were in the truck and Rook really want Ben and him to know eachother about them and after rook asked ben about the alien form Feedback and Ben refused to talked about it and Ben see Pakmar"s Truck is on fire and Ben was going for the selected alien Waterhazard but he accidently turned into Heatblast and ben did not like and go after pakmar's truck anyway and Rook followed The Flaming Truck too. But Pakmar did"nt need him to helped and threated ben to call the plumber and rook is giving pakmar a chance to stop his flaming hazard truck and rook shoot the wheels and pakmar's truck fell in the water and heatblast flamed out and remebered that pakmar is drowning and ben saved him. Back in galvan prime the galvan guide show azmuth what happended and azmuth telles her to get the guards and the doors were trapped and Khyber and Dr Psychobos were up in the vent's and Dr Psychobos think galvans are dumb and cereborcrustacean are Smarter and Khybers dog turn into a Omnivoracious and azmuth tryed to teleport out but he can't but instead he brought ben and rook later. Back in underground town Ben as Humungousaur and rook are dying the truck after ben and rook teleported out of underground town and pakmar's truck fell down and is broke and Pakmar is really mad at ben. After Ben and rook teleported to galvan prime and ben and rook are confused why are they at galvan prime and azmuth will tell explain to them later as bne will say as never and rook and ben fight khyber's dog and then after ben turned into ball weevil and make a splat ball and hit the Tyrannopede and rook abd azmuth have a plan to destroy khybers dog and after ben was trapped in a spider web and transforms into ben again and he turned into big chill which khybers dog turned into a Hypnotick and Trick big chil into get near him to kill him and almost got eaten and azmuth ticker the dog and khyber whristed him and turn into a omnivoracious again and ticker again and a new form of khybers dog is a vicetopus for the first time and break into the glass and Dr psychobos demand that khyber shound save him and but khyber refused to save him after what bad thing that he dided to khyber and the vicetopus grab him hard after ben demand thant Dr Psychobos to tell where malware is and the vicetopus let go and he got captured after the nemetrix is gone and khybers dog is captue too them Dr psychobos said his last word it's not the end hahaha to be continue...

TBC TBA

Major Events

 * Omnivoracious and Vicetopus make their debuts.
 * Ben reveals why he stopped using Feedback.
 * Galvan B is destroyed.
 * Dr. Psychobos and Khyber's Dog are taken to custody, while Khyber escaped with the Nemetrix.
 * Azmuth makes his present day debut.
 * Rook meets Azmuth for the first time.

Nemetrix Alien Debuts

 * Omnivoracious (first appearance)
 * Vicetopus (first appearance)

Characters

 * Ben Tennyson (11 and 16 years old)
 * Rook Blonko
 * Gwen Tennyson (11 years old)
 * Max Tennyson (61 years old)
 * Derrick J. Wyatt
 * Azmuth
 * Pakmar
 * Fergi

Villains

 * Khyber
 * Khyber's Dog
 * Dr. Psychobos
 * Malware

By 16 year old Ben

 * Heatblast (accidental transformation; intended alien was Water Hazard)
 * Humungousaur
 * Ball Weevil
 * Big Chill

By 11 year old Ben

 * Feedback (x2)

By Khyber's dog

 * Omnivoracious (x2; first appearance)
 * Tyrannopede
 * Terroranchula
 * Hypnotick (x3)
 * Vicetopus (first appearance)

Errors

 * In one scene the Omnitrix is on Humungousaur's shoulder.
 * During the flashback right as Ben enters the Rustbucket, to the left, a log, a campfire, and rocks can be seen. In that shot, the log is furthest to the right. In the next scene right after Malware blasts the Rustbucket, the log is now between the campfire and the rocks.
 * Rook stated that the last time they met Malware, Malware said, "You [Ben] had already lost, without even knowing it.", in the flashback of that episode, when Rook was not part of Ben's team yet (though since the episode shows that the Plumbers have extensive files on Ben, and that Rook had been going over them a lot, it's likely he read it in the report of that incident).

Continuity

 * It had been revealed what Malware stole from Rook's Proto-Truk were Galvan security codes when Rook revealed he is part of Plumber's special forces.

Trivia

 * It is revealed in this episode that Feedback was 11-year-old Ben's favorite and most used alien. It was later removed and destroyed by Malware with an additional error of not allowing the prototype Omnitrix to accept any new Conductoid DNA.
 * Even though this episode aired later than other, newer episodes such as Special Delivery, the special sound effects in the opening cannot be heard this is because this is the arc 2 finale not arc 3.