Player Assignment
Assign Light Guns in Player Assignment
First click the 'File' and then click the 'Player Assignment', which will bring up the 'Player Assignment' window. The window has players one to eight, with each one having a combo box next to it. Open player one's combo box, and select a light gun from the list of light guns. Then other players can have a light gun assign to it. Only assigned light guns that you plan to use currently. Once completed, click the 'Assign+Close' button in the bottom right. This will save the player assignment and close the window.
Assigned Light Guns Not Plugged In
If you have assigned a light gun to 'Player 2' and not have it plugged in, and start a 2 player game, a warning pop-up will happen. Telling the user that it cannot connect to the light gun. This pop-up warning only happens once, for each light gun assigned to players 1-4 and not plugged in. For player 3 it will only happen on 3 player games, and to player 3 & 4 on a 4 player game.
Hook of the Reaper Setup is Completed
Now go play some light gun game with that glorious feedback!