Japanese surely have lots of unique gimmicks. I don’t know if they cooked this one up originally but this is a funny contest called the Human Tetris. They stand on some sort of a board, good enough to stand up and waiting for the incoming board-sized wall to come at you. The hitch here is there’s a small hole on the board in the form of a human but in a certain position. The contestant has to pose the same way as the hole on the board was made, else if the board doesn’t pass through the contestant, it pushes him with it and the contestant falls back with lots of water awaiting him. Check out the video. It’s quite funny lolz.