I just got my Sente a week ago. I think it came with 49 games. I've been extremely busy, so just started getting around to playing all the games. So far a number of them won't work. They will get to the start screen, but that's it. Then the only button that works is EXIT. Off the top of my head, Black Widow, Darius Gaiden, Astroids, Blood Storm, and some others were doing this.
Do I need to erase them and redownload?