Bittersweet Ending: Dot makes it home in the end, but she is devastated at the sudden departure of the kangaroo. Dot even sobs as she cries out for the kangaroo to come back at the end credits roll. Also, the kangaroo doesn't find her joey. See Tear Jerker below.
Though Some Anvils Need to be Dropped in the latter's case, considering it was one of the first cartoons to tackle the issue of whether animals belong in circuses.
Jerkass Woobie: Funnybunny. He spends most of "Dot And the Bunny" trying to convince Dot that he's a joey and in general acts like an irritable brat but at the climax of the movie He breaks down in tears and tells Dot that he was orphaned by hunters and is only pretending to be a joey to find a new mother.
Nightmare Retardant: The Bunyip turns out to be not nearly as scary as the first film made it out to be.