I just picked this up, and I'm psyched to play it, but I noticed a region 1 symbol on the back of the box. I have a Japanese PSP, so I'm hesitant to open the game (Best Buy probably won't take it back opened). I didn't think the PSP had region encoding, but I thought I'd ask here if they'd started it up with this game before I open it and screw myself out of $30 for the game.