Hi, I've recently come across an Audiovox brand portable DVD player that has a game controller. It plays DVD's, as well as MP3 and JPEG files. So you can listen to downloaded music or view picture files on it, but what is the video game controller for? There are numerous models with the controller, some have a SEGA controller and another I saw has a purple Mega Pad with a soccer ball on it. Can you play any games on these systems? Or are the controllers just for scene selection or selecting MP3 files?