I wasn't aware of more of these things, I got one based on Ganbare Goemon very many years ago that doesn't seem to be listed on that site, but it was the system by itself. Very sucky and boring though
I imagine they're all the same thing where you're stuck on one screen, would be neat if it was a true sidescroller of some sort.
Just wanted to share that, I don't know where else you can find the manual though. You have no idea where you got it from or what kind of site?