Slightly OT - Speaking of Robotron, just in case people don't know it, the Atari 7800 version of Robotron works with both single and dual joysticks for gameplay, the holder design was made but never released for the 7800, too bad...
a 7800 version of Battlezone such as the XE version would've rocked!
Curt
Did anybody ever see one of these?
Allan