[Darwin holds up a piece of cardboard with "Alligators on a Train" written on it; made-up music plays in the background]
- Doot Doot Doot! [fake theme music] Alligators on a Train!
[Scene changes to Darwin wearing a fake mustache]
- Oh no! There's alligators on this train! [Darwin beats up the cardboard alligator] Thank goodness, we got all the alligators off this train!
[using a slightly high-pitched voice]
- Thank you so much for saving us from all the alligators on this train.
[Gumball and Darwin initiate a fake make-out scene]