You're right Crawl. It does have "Super" versions of several games on it where they hacked the game to be faster. I had forgotten about them though. There's even some weird things in familiar games. In SMB on the multi-cart, the tops of the mushroom platforms (like where you warp to world 8) are upside down. I really wish I could get Nesticle to work for me since I love NES games so much. To this day, I still discover new NES games I love (I just got Shatterhand, and it's awesome). I've also heard of that N64 device you speak of. Asian pirates sell a lot of games that way.
-'Tamer