Something I have just recently bumped into while trying out some ideas for the Machinima for JJ2. It is currently unpossible to activate player #3 without having a joystick and it is also currently unpossible tot activate player #4 without having a second joystick as well.

Question in short:
Could you please, PLEASE, PLEAZZZE add a 'Keyboard 3' feature? There's plenty of letters on the keyboard anyway.