So I tested it out. It actually works better than I remember. I almost want to keep it.
Every so often when you pop in a game it loads up a screen that says INSERT GAME. When you unplug and plug the game back in it works. I actually think its more of the games than the system. Example
RoadBlasters and
Gates of Zendocon worked every time I plugged they in, while
Shadow of the Beast and
Gauntlet take a few tries. Once it starts working its good.
Still interested? I could get more for the Lynx stuff but I didn't pay that much for it a few years ago so its all good.