Just bought some stuff off ebay.  Pretty happy about it.  A pair of brand newSanwa JLWs, a Betson Imperial trackball, and 2 mystery boards.  Grand total was apx $25.  Here's where I need help.
The trackball has a sticker on the side of it that says HotRod Joystick, a serial number and some info about HanaHo.  The casing is stamped "Betson Imperial" in several spots.  It has a PS/2 connection on the end of the cord.  Haven't plugged it in yet.
There was a small card in the bundle that says HotRod Controller v 1.1 on a sticker.  Elsewhere on the PCB it says "HRJS-0012-A Reb B"  Googling those terms gets me nothing.  The board has 2 PS/2 ports on it and 32 pin headers (4 banks of 

.
The Mystery boards... I've not looked at yet.  They were a toss in with the bundle.  I'll post pics and details later.