Here’s a guide to underclocking and overclocking your DS Lite. With this, you can set the speed anywhere from 0.66x normal to 1.8x normal, which both lets you slow down action games like the new Mario and speed up games like Phoenix Wright (which annoyingly has no setting for making the dialogue faster).

The process isn’t too difficult if you’re handy desoldering and soldering things, but it requires a steady hand and probably an hour or so.

Project Page [modd3d via Make]