What could be better than playing Mario Kart DS on the Nintendo DS? Playing it at blistering 100MHz. At the turn of a switch you can choose between 25MHz, 50MHz, and 100MHz operation speeds. Video clip after the jump.

“They inject a signal frequency, multipy by 4 (the arm9’s multiplyer by the looks of it) and you get clockspeed. – D (Kotaku)”

[KotakuShoutWire]