The AR code can be found here:
http://forum.gbadev.org/viewtopic.php?t=14...er=asc&start=10
After starting the game, hold START+SELECT to enable the cheat.
Actually, you can add "analog" control to games that use the digital D-pad. My DS Motion Pak hack does this with a technique called Pulse Width Modulation (PWM). Basically, the pad is pressed on and off very quickly, with the percentage of time that it is pressed increasing as you tilt more...
This is a really cool hack. I love to see things used for alternative purposes.
Here is a video I made of another way to control Mario Kart - with the DS Motion Pak
http://www.youtube.com/watch?v=O2ha78roYv4
I feel like school, back when I was actually in school, was more entertaining though, because of how much I get to interact with people, hang out with friends, and other stuff like that. All I get to talk to at work is my boring coworkers lol