This OW had an issue with the Chassis, so it has from time to time an aiming issue. The gun will not register always or some fields of the screen can't be aimed. Additionally one can't be sure if it`s now a technical issue on PCB, Chassis level or on the optics. There is built-in a optical sensor in the gun, then comes the lens. I`m sure the position of the lense is important, too. After the lense there is the monitor bezel, the mirror and then the CRT screen. All parts must be clean to make the gun register with a nice black level of the screen picture.
Finally there`re so many factors that makes this game difficult to maintain. Last issue was speed slow downs, but this was fixed with a chassis cap kit.
Gameplay is ql, but the 2nd level end boss is very hard. After that the game becomes more fun.
Another reason is, that the gun recoil is very loud. It`s ok for gamerooms with a insulation, but this recoil sound can be heard in the whole house
