First, an introduction to the game. God Eater is an Action RPG that looks like it could compare to the hit Monster Hunter series. A "trailer": Gameplay: You can download the demo online from Famitsu and put it on your memory stick. It requires OFW 6.20. Download: http://www.famitsu.com/game/news/1229546_1124.html Megaupload Mirror: http://www.megaupload.com/?d=P6WBC6BT It doesn't work on 5.50 GEN-D2. Seeing as how GEN-D2 auto-decrypts, this should work. Since it doesn't I think it's safe to assume that Sony added more EBOOT encryption in 6.20. If you have a spare PSP on OFW, you're in luck.