In this video we learn how to put a Sega Genesis emulator on your Nintendo DS R4 or M3 card. Putting the Sega Genesis emulator on your Nintendo DS R4 Card allows you to play games that were originally designed for the Sega Genesis on your Nintendo DS. The first step is to download the very small emulator software from the link they give us in the video. The second step is to install the software on the PC that we downloaded in step 1. The third step is to move all the files over to the R4 or M3 card. By following the very simple steps that are outlined one can easily play Sega Genesis games on their Nintendo DS.