The gun uses a USB connection as opposed to a PlayStation controller port of the GunCon 1 and also hooks into the video signal of the console (either composite video or the Y signal of component video). These new buttons served to open new gameplay opportunities, such as character movement in Dino Stalker or the ability to use two guns at once in Time Crisis II. Prominent additions to this second GunCon model is a D-pad at the back of the gun barrel and a C button added at the bottom of the gun handle. Two new smaller buttons, SELECT and START, have been added to the left side of the shaft. The side buttons, A and B, have been moved rearward to a position directly above the trigger.
GunCon 2 (G-Con 2 in Europe) features a smaller body, as well as a more rounded shape when compared with the original GunCon. Using this setup though, it is fairly easy to take the mame driver for this setup and make it compatible with ps2 emulators. This works perfectly,but the only issue is that no one has wrote a drive for a guncon to work on the ps2 emulator.