A news.telegraph article describes the spectator sport of paper robot westling that's become a fad in Japan. The papers robots, known as Kami-Robo, are 15-20 cm high and fight in a tiny boxing ring. The action is seen on a big screen with a professional announcer. Tomohiro Yasui invented Kami-robo as a child after watching Mobile Suit Gundam and professional wrestling. It's not entirely clear from the article and associated photos but the robots don't move under their own power. There's no fancy stop motion photography involved. A human hand just holds each robot and bangs them into each other much like a child playing with action figures. The whole thing might sound silly but over 500 people attended a recent Kaim-Robo match in Japan. There are plans to introduce Kami-Robo in the US. If you think about, Kami-Robo are controlled by offstage humans, so they're not really that different from Battlebots and might have a ready made audience here. For more details see the Kami-robo website which includes some Quicktime videos of an actual match.