Awesome / Tiny Toon Adventures: How I Spent My Vacation
Byron, Elmyra's lazy basset hound, spends the movie on a river trip with Buster and Babs. When he's woken from his nap to find that the bunnies are about to be eaten by their predators, he flies into the fray and airlifts them to safety.
There's also the fact that the audience (loudly!) cheered Fifi kicking Johnny through the doors of the theater.
As Buster plays a banjo-and-tongue arrangement of the Tiny Toons theme song, Babs spends the whole duration running for her life from hungry possums... before she finally gets the ante on them by tying their tails knotted outside the log they're in and rolling them down into a river.
At the very end, having spent the entire film as Buster's squirt-gun target, Babs finally gets him back with a bucket of water that leaves him completely drenched.