As a general rule, when I comment on things, I try to avoid saying too much specific about plot, scenes, et cetera, while trying to give anyone reading my comment a basic idea of the feel of the film or short so they can decide if it might be their cup of tea, so to speak. Occasionally, I run into something I want to describe a bit more specifically, but I'll still try not to spoil anything. I may still let too much spill here. You have been warned.
This starts out with Bimbo and Koko playing Mad Scientist. They get distracted by Betty and start watching her instead of the stuff in the lab and an experiment goes awry. Shades of Boris Karloff as the experiment sets out to make Betty his Elsa Lanchester. Sight gags set in time to a great jazz score, some of them things that would have been unacceptable to the Hays Office a year or so later (one in particular that I'll remember the rest of my life!) and an ending that's incredibly silly, but fun to watch. This has everything an early Fleischer Boop should have-surreal sight gags, a little risque material (though tame today), great music and the unexpected. One thing I'll never know, though: did James Whale ever see this and I wonder what he thought of it if he did. 11 on a scale of 10. In print and available. Most highly and gleefully recommended.