Well I know for time crisis 3 you must have it set on "guncon2" the switch on the gun. And since it's guncon2 you must plug into controller port#1 AND ALSO the top one of the little computer plugin in thing. I think it's called iee or something like that there are 2 of them in lower left corner under the controller port #1. Also the yellow plug must be in. That should do it for one player. Calibrate your gun and you are set. BTW-Thanks to Spratster I have the very same p99 lightgun.