Well, Gradius for the USA (NTSC) won't be released for a few more days but who knows if it will work yet. Lemmings (PAL) works fine backed up as ISO but the recent USA (NTSC) release of Lemmings does NOT work.
Don't be fooled just because the game is Japanese region. The menus & text, are strangely all in ENGLISH. There is not a bunch of strange Japanese characters all over the screen to make you guess which option or button to press. Its like you were playing a Europe or USA game. At 247MB for the FULL game, it won't take much space up at all.
I'm loving it! Again, Great PSP game!
