So I have a chance to buy a lost world Jurassic park shooter, (stand up). I just went to see it and the 1st player registers only on the left side of the screen , while the 2nd player gun goes crazy on the right and also sort of works on the left side of the screen. He has a spare 2n player gun that he says was changed out for the current gun because of a wiring issue? There were two wires that weren't in the molex connector but I didn't say anything. Those sensors off the happ store are $68 bucks each so what's everyone's ruling? The replaced 2nd player gun is screwy or am I going to have to change some sensors around the monitor ? Oh and I also noticed when I was looking that the supposed not working sensors on the right side of the screen still had like a red infrared light on like it was getting power , just like the other ones that were working