TheCondowit shows you how to put a Gameboy and Gameboy Color emulator on your R4/M3. First go and download the lameboy software. Open the lameboy.mds file and make a new folder for it. Go to the bottom of the descriptions and you will go to a site that will give you ROMs. After you add the ROMs go to your Nintendo DS, pull up the games folder and select your lameboy file. Select the folder you will put your ROMs in and you should see your ROMs and be able to open the files.