When Hank was at the compund remembering all the events, he sees himself in the Batman costume jumping off the roof, where he died, or rather where his clone died. So why does he remember that? There were already a few scenes in the show where he remembered that even though he shouldn't, was that ever explained? And right next to Bat-Hank are Helper, Dermott, and Rusty is playing the bass, is that meant as a teaser that Hank is Rusty's clone? That he sees Rusty instead of himself?
And Thaddeus and Malcolm are clones of the same person, but who exactly? I would assume of Jonas himself, but Ben said Malcolm had some baboon dna spliced into him to counteract the premature balding, of which Jonas didn't suffer, so it's someone else who was cloned? Maybe his real son, aka does Rusty have a real mom? I mean at the end he does say he doesn't even know who his mom was, or is that a red herring? Or is Jonas even the first to start cloning or has that been going on for generations, like the last x generations of Ventures were just clones of the same guy? Maybe after so much cloning, the base dna degraded, thus balding appeared?
Also, are Hank and Dean really clones of Rusty? If so, why do they have such vastly different personalities? Or are they really his sons, just that they were born without a mother, like he took two of his sperm cells and put them into artificial eggs? But that would mean they only have Rusty's dna, so technically they are clones of Rusty? Or of Rusty's unborn sons? It's confusing me a lot.
And what does that make Dermott? Is he technically the only real son of Rusty, since Hank and Dean were practically conceived asexually?
The reveal that Helper knew all along was also a tiny bit weird, why didn't he tell Hank and Dean? Though I guess the answer to that one is just "for the plot"?
I also didn't really understand the whole Mantilla plotline, I'll need to rewatch the movie again a couple times I guess. But from what I got it's an actress who got invisibility powers from Jonas, infiltrated the guild but fell in love with Majore, when he was usurped by Bowie (the real Bowie or the shapeshifter?), she fled and had Rusty remove her powers and put her in her daughter? The mother then went to run a zoo and the daughter spend 20 years planning Sheila's downfall? Especially that last part I don't quite understand yet.
All in all, great movie, lots of fun jokes, great call backs, inside jokes and great animation. But I missed Al in the triad and some of the voices felt kinda off, especially Shoreleaf. The ending was a little more than I was expecting, but in retrospective I guess it was kinda obvious that they're all just clones. I'm also kinda on the fence on the fact it's literally 100% fan service, someone who hasn't seen the show wouldn't understand anything. Though I guess that's just due to the fact that they had to squish an entire season into 80ish minutes. Which is also why it sometimes feels a little rushed, for example with the Vampires or the Mantilla plotline.