This thread reminds me of the recently-found prototype cart of Sim City on the NES. I'd love to see that ROM get dumped, just because it's a neat piece of gaming history. Looks like it's just about the same game as the SNES version (obviously not up to the same graphical standards), but it's neat to see it even running on an NES.
You should check out my YouTube channel, The Golden Bolt! I review all types of video games, both classic and modern, and I also give short flyover reviews of the free games each month on PlayStation Plus to tell you if they're worth downloading. After all, the games may be free, but your time is valuable!