- Actually, Uncle Grandpa notes early on the crossover isn't canon. AND he has a list of "grandkids" that are all from different universes, confirming he can travel the Multiverse and implying he was just visiting Steven's Universe.
- His RV is Bigger on the Inside...
- And he does claim to be the oldest person in it, which would mean he's been around for over a billion years.
- On top of that, he travels with a group of companions, and his RV has a London-style phone booth inside it (the wrong kind, but the allusion is still clear). In universe, he may have actually met the Doctor and keeps said booth as a reminder of one of his few surviving brethren. He just forgot the colour, being that he's...well, Uncle Grandpa.
- And he does claim to be the oldest person in it, which would mean he's been around for over a billion years.
- And he will eventually meet the woman of his dreams, Aunt Grandma, the amalgamation of every woman that exists or has ever existed.
- Partially confirmed in "Aunt Grandma". There is an Aunt Grandma, but she resents Uncle Grandpa, and she's a normal human who only fakes being the Aunt and Grandmother of everyone.
- After all, what do most of Nurgle's followers end up calling him? And some of his Greater Daemons prefer to go by "Uncle". Makes sense if you think about it enough.
- Thing is Beary is just really good at masking his sadistic nature, he's like a weird mix off Affably Evil and Faux Affably Evil, that is his real personality there, and he's a pretty cute little guy overall, but the fact that he remains so calm and seems to still enjoy himself even as Hot Dog Person gets hurt/dies is just disturbing.
- The Nightmare Face Beary Nice makes in "Pal.0" seems to suggest he might be torturing Hotdog Person on purpose which makes this WMG valid.
- As a fan of the OLD CN, I conquer. Remind me to write a fanfic where he is the spawn of Aku
- He's virtually omnipotent and is the uncle grandpa of everyone on Earth, much like how God is known as "the father".
- Also a Shrug of God implied that all the idiotic mistakes he makes may actually be going exactly according to his plan, much like how religious people IRL often explain horrible things as being part of God's perfect plan.
- He appears child-friendly with his wacky bunch of friends, yet he gleefully admits to enjoying things like blowing up the world (and he kinda does just that in "Charlie Burgers") and doesn't seem to feel bad when he basically ruins a kid's day before fixing it in a bizarre way.
- I mean, come on, what else could he be? Some kid was bored and lonely one day and imagined himself up a playmate who could take him on wild and fun adventures in the "magical RV" that was parked in the driveway of his home. As for how Uncle G came to life, well, maybe the kid just made him that powerful.
- This is supported by "Afraid of the Dark" when UG refers to the monsters attacking him as his imagination.
- Which Ed? Ed from Ed, Edd n Eddy, perhaps?
After Instrumentality, Shinji wanted a world where he was loved by everyone and not expected to save it. So, he became Uncle Grandpa. Mr. Gus is an amalgamation of Rei and the Evas, seeing as how Mr. Gus is deadpan half the time, and is very strong.
Shinji wanted to get rid of the negative elements, so when remaking Asuka, he got rid of her Tsundere personality and made her Pizza Steve. Despite being much friendlier, he still kept her narcissism so he could still recognize her.
Belly Bag and Giant Realistic Flying Tiger are his creations, as is everyone else in the world.
As for the rest of the Neon Geneis Evangelion characters, Shinji allowed them to die because they had no place in his utopia world.
1. She was a young girl who Uncle Grandpa failed to help, so she took it upon herself to get revenge on Uncle Grandpa
- The episode says this is the way it happened. She was an overachieving student named Priscilla who wanted Uncle Grandpa's help with her science project, but he instead took her on one of his "pointless adventures", resulting in her only making 2nd place. So she decided to try and take his job based on that.
2. She comes from an alternate universe and, with no way to get back, decides to take over for Uncle Grandpa, believing "there can be only one"
- Jossed.
3. She is a government agent, since the US government could see Uncle Grandpa's help towards kids as obstructive towards civil order (or Uncle Grandpa's abilities threaten the New World Order plot), so they have an MI6 agent pose as a female version of Uncle Grandpa, an idea the president got from watching Adventure Time.
- Jossed.
4. She is jealous of Uncle Grandpa, and wants to replace him and hog all the love and fame.
- Jossed.
5. She is a reptilian, and subtle commentary on conspiracy theorists.
- Jossed.
Uncle Grandpa isn't that popular compared to other shows to make it better, so they are combining it with a good show in hope to boost ratings.
to Captain KangarooMaybe that's how he met Gus.
- Jossed, if you count the episode "Uncle Caveman".
They're both reality warpers from a dimension of weirdness. When Bill destroyed this dimension, this left Uncle Grandpa and his pals no choice but to travel around the world in their RV, spreading weirdness in their path (like what Bill tried to do, but using the power of weird for good instead of evil).
I mean how else can you explain the guy being everyone's uncle AND grandpa?
