Japscat is the kind of video that makes you wonder what the %#^& is going on in Japan. The video starts relatively normally but at about 00:44 things start going downhill. The Japanese guy in the video is clearly a nutcase who needs to be locked up.
Created in circa 1986, Japscat went largely unrecognized by critics for some time. It was only in 2000 that the Japscat video was picked up by Stile Project that it began to become well known on the internet.