All these posts, and no votes for “Los Dos Mojos”? How can this be?
My fav is Just Another Manic Mojo where you see Mojo when he’s not trying to conquer the world. I think it has some of the best Mojo quotes.
“One egg left?! For a nutritious breakfast, two eggs is the minimum requirement! And I have but one, which is one shy of two! And it is two that I need! Curses! I must immediately purchase some eggs, for I need to have breakfast. And without the eggs, I cannot have the breakfast that I shall require!”
My absolute favorites have pretty much all been mentioned. Meet the Beat-Alls, Just another Manic Mojo, Los Dos Mojos, Bubblevicious, Bare Facts. I can’t believe nobody said Bubblevision, though!
As for the movie, it’s very short, and could have been much shorter. The “tag” scene is cute, but it went on WAAAAY too long. I hadn’t been expecting the origin story when I saw it, and I was very pleased with that one.
And the line about there being “too many monkeys” cracks me up every time
My favorite Powerpuff Girls quote is from the movie when Mojo Jojo says “For too long have we sat under the thumb of mankind! Now is the time to OPPOSE that thumb!”
Too funny. 
the Beat-alls had to be the best episode…everything about it was so clever…and to think all those poor little 7-year olds have no clue 
Bubbles: (crossing her eyes) Hi, I’m Buttercup. (throwing imaginary ball) Catch!
This falls under the heading of “Bubbles blows everyone’s mind”, I think–I should have listed it. It also supports my belief that Bubbles is secretly the toughest of the three.
This ranks high among the greatest Mojo lines:
“I’m wet. I’m naked. Your sister is wearing my clothes. And you think this is part of some plot to rule the world as a soggy chimp in my birthday suit?!”
My favorite character is Mojo Jojo, so I pretty much love anything with him in it, but if I had to pick one favorite episode, I’d choose the one (sorry, forget the title) where he turns the world into dogs for the second time. And, he recapps his prior mistakes. It was one of the first episodes I ever saw, and it hooked me.
I saw a Valentine’s Day episode from Season 5 titled Kean on Keane where the girls play Cupid trying to fix up the Professor with their teacher. Hilarious.
Although I reeeeaaaallly love the show I can’t actually say that I have a favourite episode. They’re all great! Not that I saw anything past the first season, because they took my Cartoon Network away and forced me to grow up. wail