Video Report by Yamanote Halloween Train Supporter
The video seems to be made up of clips from the 2006 party:
I have more commentary from myself and from participants including one who confirms the existence of the Halloween Train event going back to 1990. It also contains a brief message to a pair of Tokyo-living Wikipedia users who last year did everything they could to get an article on the event deleted because they never heard of it.Also for some of the critics who decry the event as just crazy gaijin taking over the train, you’ll note that nearly half the people in this video are Japanese.
At around the 6-minute mark of the video, we are shown how Japanese passengers reacted to the party. I believe the word “terrified” was used.