[DISCLAIMER: Japanator and its parent network, ModernMethod, are not responsible for trauma or death caused by watching this video.]
While Japanator's Ran Ran Ruuu! tag has become a sort of catch-all for anything McDonald's Japan related, it has its roots in countless insane video mix-ups inspired by one McD's Japan TV clip from 2006. This one is still my favorite.
Almost exactly five years ago the most popular of these videos was uploaded to Niconico. If you haven't seen it yet, know that it's pure nightmare fuel, and that it has been watched over 10 million times. Watch it here.
To celebrate the five-year anniversary, the video above was created. RocketNews24 says that three users worked together to create this insanity. It's amazing and terrifying at the same time. I laughed and cried at the same time. Now I'm praying It's like they've summoned a demon in video form. God help us all.