Extremely bad, deservedly one of the biggest financial disasters of the decade. There was little potential in a supposed feel-good kiddie movie about a boxing kangaroo trying to beat the human world champion, but it didn't have to be this bad. For instance, they could have trained a real kangaroo instead of using a ham actor in a cheap, heavy, molting kangaroo suit that bears no resemblance to an animal, even with the animatronic facial expressions. And if you've ever wondered why Elliot Gould's career tanked in the late seventies, this is a big reason. He tries to make up for the bad kangaroo by hamming it up and desperately trying to be cute. And they didn't have to have such an annoying, sexist romance subplot either.
Incredibly bad, but not enjoyably bad like an Ed Wood film. For serious Bad Film buffs only.