When did you catch the twist? (Spoilers)
I knew it as soon as Bowler Hat Guy gave Goob "the pep talk". Similarly, I guessed Lewis was Cornelius when the robot said there was a 99.999% chance Wilbur wouldn't exist, but I don't think it was supposed to be as big of a reveal.
ABC, 123, that girl wore her jeans like me. I bet she's mad, 'cos I look fab. Hahaha, JACK MY SWAG.