I was playing on the playstation core today, for the first time in several months (been out of town) and everything was fine, but I tried to load Pepsiman and the core flashed "unsafe option used" in the upper left, and the screen stayed black. Weird. I have played pepsiman many times last year. I tried other japanese games that had worked in the past and none of them load. I did update_all several times since I've been back and have been mostly playing the saturn core, but now I'm confused.
I tried setting the console to ntsc-j, but it didn't help.
Any ideas what I'm doing wrong or not doing to make these games work? All the US games I've tried work.