I didn't comment anything back when Part 1 was aired because I prefered to wait for the second part. Anyway, after seeing all this, now I want to comment a lot of things:
+ I can't believe no one has noticed a cameo in the Part 1. When Humungousaur slips himself under Tyrannopede, he accidentally trips and ruins a scale model of what it seems to be "prhistoric Galvans". If you look closely to the designs of their primitive houses, clothes and vehicles, you will realize that they are copies from the world of "The Flintstones".
+ The story of the Omnivoracious mades me think about the dinosaurs. Omnivoracious were once the dominant species on Galvan Prime, but a meteor struck the planet and destroyed most members of the species; allowing the Galvans to evolve without danger. Just like the dinosaurs were once the dominant species on Earth until a meteor killed them, allowing mammals to take the planet and create his first sentient species: the human race. So that makes me think, could this mean that some dinosaurs could be the human's natural predator. Since the Tyrannosaur has been used for "Tyrannopede", maybe our predator could be the Velociraptors. Don't you think?
+ I'm really feeling sorry for Pakmar, he's always in the wrong place and in the wrong time. But in this episodes, this time the blame is on him. I mean, why didn't he put some more clear signs of his "barbecue truck" to avoid misunderstandings? This one was his fault.
+ It's funny, you know? Khyber's dog has ended in a way more similar to what I was suspecting from the beginning. I mean, it never was truly evil, it was just a "pet" obeying orders from its "master". And in the end, his "master" simply abandoned him even after calling it "old friend" so many times. I suspected that at the end, he would join Ben's team with the Nemetrix, being really useful as a "police dog" and fighting alongside Ben and Rook. Too bad it lost the Nemetrix, but at least now it has a better "master" with Kevin; which I didn't expected Kevin adopting it, but I guess that's the kind of dog that suits him. And discovering the mutt is actually a female... Well, I'd have never imagined that!!
+ Speaking of Khyber, it's obvious he will return in the future, since he run away with the Nemetrix. I know they told us that the Nemetrix wouldn't work of a sentient being because of the wild nature of the Nemetrix. But somehow, I suspect Khyber will actually find a way to use it himself the next time we see him. I see this villain as living in the border between "sentient" and "feral" because of his old "hunter stuff"; which by the way, makes me think about Kraven the Hunter, Spiderman's foe. I wouldn't be surprised if Khyber ask Albedo for help to find a way to use the Nemetrix himself; as Albedo's knowledge of the Omnitrix's technology and experience using it could make him the ideal subject to "perfect it". But something tells me that would be Albedo's last act, as I'm sure Khyber would then kill/hunt him as a perfect "guinea pig". I mean, once Khyber sees that he has hunted Ben's "lame clone", he will think he's ready to hunt the "real deal".
+ It was really nice to see the trio (Ben, Gwen and Kevin) back in action again, just like in Alien Force and Ultimate Alien. I just hope this won't be the last one. And their faces when Grampa Max appeared without pants... I almost killed myself laughing when the camera focused on their faces.
+ Speaking of Max, I really feel sorry for him in this episode. We could say he was the laughing matter in this episode instead of Ben; first with the "mini-jet pack" and then losing his pants.
+ Gwen's fury with Kevin, Ben and Rook's comments about her not being pretty... It was hilarious!!! But now, seriously, I think by logic, you can only feel yourself attracted to someone of your species. I still don't get how it's possible that a pyronite (Heatblast) and a human fall in love and have childrens (Alan Albright). Honestly, Gwen was pretty in Omniverse's first episode, before going to college; but now, with her new "nerdy look", it ruined her "pretty factor". Don't you think she's starting to look like Velma from "Scooby Doo Mystery Incorporated"?
+ I'm glad to see that Way Big didn't lost his cosmic ray's power in Omniverse. But I really missed Ultimate Way Big when Malware became even bigger than Way Big. Maybe Ultimate Way Big could have fought him the same way he did against Diagon. And it was very funny and appropiated when Way Big land on Malware, stomping him.
+ Malware's final form as a "super giant" was awesome, but I really expected they would have used Malware's look from the videogame "Ben 10: Omniverse" in the series. Well, there's still hope, because I don't think we have seen the last of Malware. Sure, we saw him turned into stone, but Young Ben already killed him after he destroyed Feedback, and still, he returned. So, who says he won't be able to return in the future? And very funny the way he was turned into stone. It was like it was ripped his new "red form" and he was back into his "original red form".
+ It was great to see Ben gaining Feedback again, but not very amazing since we already knew he would return after seeing "Store 23". Besides, if Current Ben couldn't use Feedback, I would always think that Ben would always stay "imcomplete". It was very appropiated his return in this episode, as it was "even the score" against the guy who destroyed him first. One more thing, when Ben said "Did you miss me?", it was Ben who talked or Feedback?
+ I was also sure that Galvan B would be reconstructed, but I wasn't sure how. I thought Ben could use Alien X again, but I guess Ben already "consumed" his luck with this one after reconstructing the whole universe. It was amazing how all the Mechamorphs reconstructed their planet like that.
Well, opinions?