The only lockout is that PAL games display differently to NTSC games so a PAL light gun will only work with PAL games on a PAL TV and a NTSC/U or NUTC/J light gun will work with both NTSC/U and NTSC/J games on a NTSC TV because they both display the same way though if you are using a VGA Box light guns are then region free because VGA displays the same for PAL, NTSC/U and NTSC/J