This is a great party movie. My friends and I have watched it together at least four times since we were teenagers. There are so many laughable moments that I could list, but here are just a few favorites:

Casey Casem is a main character (a doctor), but also provides the voice of every news announcement heard on radios in the film! (Did they think we wouldn't notice?)

Bruce Dern saying "Johnny, this is an axe. It is used for chopping wood, and NOTHING ELSE."

Dern again, upon completing an autopsy of a lab monkey: "You know, if this little guy had been healthy, he'd still be alive!"

The totally gratuitous "lady getting out of the bathtub" scene.

The soundtrack is consistently inappropriate for the action on screen. I particularly love the opening titles -- a drippy love song comes directly after a maniac's menacing laughter.

Stilted acting, poorly written dialog, cheesy 70's clothes, a ridiculous premise, and totally unconvincing makeup effects make this one of the best scoff-able titles out there (even beating "Gymkata")! Recommended for your next scoff-fest!