Some games on the ST like Gauntlet , Leathernecks and others require you to have four joysticks to play the game to the max. Below is a simple and easy way to do this.
All you need is : 1 x D25 plug like your printer plug [ST end] 2 x D9 plugs [like the current joystick/mouse plugs] 18 inches of multi-core cable. [Min. 6 wires]
Printer Plug [D25] Joystick 1 [D9] Joystick 2 [D9]
1 -------------------- 6
2 -------------------- 1
3 -------------------- 2
4 -------------------- 3
5 -------------------- 4
6 -------------------------------------------- 1
7 -------------------------------------------- 2
8 -------------------------------------------- 3
9 -------------------------------------------- 4
11 -------------------------------------------- 6
24 -------------------- 8
25 -------------------------------------------- 8
Looking at the Printer Plug [D25] Looking at the Joystick Plug [D9]
1 1 1 1
1 2 3 4 5 6 7 8 9 0 1 2 3 1 2 3 4 5
---------------------------- -----------
\. . . . . . . . . . . . . / \. . . . ./
\. . . . . . . . . . . . / \. . . ./
\______________________/ \_____/
1 1 1 1 1 1 2 2 2 2 2 2 6 7 8 9
4 5 6 7 8 9 0 1 2 3 4 5
[If you have any problems refer to your Atari Hand book for pin outs]