Oh, to start, the music is terrible. I could get better sounds from my old MIDI generator. The Nintendo Entertainment System had better sound than this cartoon. The animation is awful, like no effort was put into it. The plot line is terrible, and while that's not as important, it should at least be cohesive enough to watch, and it's not. Now, I love John Goodman, but he can't sing, at least not here. I love Jonathon Winters, but this is just beneath him, it really is. If you have kids, and want to plop them down in front of the TV and watch this cartoon, they may behave better if you immediately threaten afterward that bad behavior will result in multiple viewings. That should help.
Otherwise, avoid this movie. It's a waste of time.
Otherwise, avoid this movie. It's a waste of time.