I can believe it. There's a guy who beat dark souls with literal bananas, and then someone else beat dark souls with the DK drums and I think somebody's beat dark souls with a guitar hero controller. Kingdom hearts with the DDR pad actually seems kind of simple (and clean) in comparison.
Edit: oh, and I almost forgot the person who beat dark souls using a bunch of toasters.
"History Is Much Like An Endless Waltz. The Three Beats Of War, Peace And Revolution Continue On Forever." - Gundam Wing: Endless Waltz