*Adaptational Badass: Turning a sweet-natured character into a Badass Adorable fellow is quite cool. If only Flapjack was just as badass in his own show.
Animation Bump: I wonder if Eric Goldberg animated the characters when they appear in a live-action scene. But overall fine.
Breaking the Fourth Wall: Considering the show's usual habit of destroying the fourth wall, this is quite acceptable.
Butt Monkey: A good example of a minion who constantly gets abused and then turns the tables on his master.
Conspicuous CG: Pretty good, since it's similar to the trope's use in Looney Tunes: Back in Action.
Crapsaccharine World: Rare non-town/city example.
Everyone Has Standards: Quite nice of you to write Chowder to break the fourth wall only when it's needed.
Getting Crap Past the Radar: Your edit on this trope is much more better and convincing than my attempt at it (i.e. explicit-booty shaking in the credits).
Interactive Narrator: Why did you even put the Narrator in this movie? But meh.
Loads and Loads of Characters: Kinda disappointed Ed, Edd and Eddy weren't included, considering they're Canadian-American cartoon characters, but it's nice to see a great amount of the Cartoon Network characters.
Not Growing Up Sucks: A nice joke about the fact that toons never age.
The Other Darrin: I liked how you put a joke involving Chowder's old and new voice actor.
Overly Long Gag: You could try better by using more clever attempts, like the boys trying to break into the studio from the roof, or them becoming ninjas using stealth. But it's okay overall.
Status Quo is God: Pretty nice of you to depict the Cartoon Network characters interacting with each other like they're people at a dinner party. And there's the possibility they might become friends.
Take That!: Clever jokes involving Nickelodeon and the critical response of the 2016 Powerpuff Girls and Teen Titans Go!.
Throw the Dog a Bone: Do you mean the revival which you created?
Traveling at the Speed of Plot: More funny instances of the fourth wall getting destroyed. Great job!
That's as far as I can get. But it is longer than my previous list.