Some of the Vectrex things I have lying arond:
Autofire dongle:
PSX2 Adapter:3d Shutter glasses:VecVoice: Lightpen:Lightgun-Adapter:VecLink Cable:VecMulti card: VecVox: VecVox + USB Adapter:VecMulti:VecFlash (USB): Mateos Device:Vectrex 32:USB Adapter (Vectrex Joystick):VecFlash Powerboard:VecFlash (serial):Joystick Kit:1997 Development Kit Malban (Eprom Emulator parallel port):PS2 Adapter (Keyboard):PSX Adapter:One of the earlier Sean Kelly:Vec Adapt to use Sega joypads:
Didn’t know Clay Cowgill made a PSX adaptor for the Vectrex. Playing Black Widow or Robot Arena with 2 sticks possible.
If the last was a question – yes both possible.