Classic Horror opens with this:
From the first bubble of the elixir that forms the credits in chemical smoke to the last crash of the final battle of titans, Frankenstein Meets the Wolf Man is quite a treat for the Universal fan. Not only do you get two exciting monsters for the price of one, but they're placed in a vigorous storyline that, while slight, is too much fun to dislike.Empire Online says,
Silly but enormous fun, complete with gypsy musical numbers and an insane battle royal finish as the monsters rip each other apart while some loon dynamites the dam and the castle is swept away in a flood. This is one of the most-often excerpted films in movie historyDVD Journal calls it "stylishly effective, rollicking good fun". DVD Talk says it " is fast and fun and has some nice thrills". 1000 Misspent Hours calls it, "the beginning of the end for Universal in its role as America’s top horror studio." Rotten Tomatoes has an audience score of 55%, so over half of us like it, making it worth watching once anyway.