As anyone who's bought the book knows, the samurai animation on this site appears as a flick-man animation in the corner of the book. In fact, the little samurai slashes into the page, and then steps through the cut. If you then flick the book from behind, of course you see him emerging into the cut [...]

(I know, I know, I should have put this link up months ago.) Roy is a judo purist, Rexley less so. Together they are Dog Judo. I haven't checked, but I suspect that nowhere in the International Judo Federation's rules does it explicitly state that only humans may enter the competition circuit.