gun-shooting game..?like "Time Crisis"?
yup..dat sounds make sense..
well..btw..guess the menu simply just "display"
or "detect" whether the psx mouse is attached
or not..if the emulator support it
still..the specific plug-in is needed..well..maybe yes..
maybe not..just guess

btw..how bout plug-in for other psx
accessories(wrong spelled?)..kinda like dancing carpet..
or multiplayer tab..or likewise?