Our esteemed brothers at Kotaku have uncovered a video showing Mario Kart running at a spectacular 100 MHz on a Nintendo DS. With this rig, it's possible to dial up and down the overclocking and underclocking, making the Nintendo DS either rock 'n roll like the chipmunks or slip into slo-mo. Not sure how useful this is, but it's an interesting technical exercise nonetheless—one that we didn't even know was possible.

100 MHz Nintendo DS [Kotaku]