It's Friday the 13th, and you know what that means -- it's time to celebrate the work of mass murderer Jason Vorhees!

Emphasis on the 'mass.' There are a lot of Friday the 13th movies, and Jason is quite busy in all of them, from his bloody debut in Friday the 13th Part 2 (1981) (remember, it was his mama who did the killing in the first movie) through the so-so 2009 reboot, titled, appropriately enough, Friday the 13th.

The latest original video conjured by our pals over at Blastr features every single Friday the 13th movie kill in 90 seconds. That's right. It's hypnotic. Really.

Watch below, and enjoy this joyous holiday.