So I decided to look through the Contra 4 rom to see if there was anything of interest and it appears there was. I ended up finding the Contra.nes and SuperC.nes roms inside. They play like any other rom in an emulator. The strange thing is that there are small differences between the roms and the good NES dumps we have. I have a few pictures of them. The files not labeled with the "good set" labeling ((u) [!]) are the ones I ripped from the Contra 4 rom. Contra.nes differnces SuperC.nes differences It appears there's quite a bit of padding added to the Contra .nes rom I got from Contra 4. and the difference I found in SuperC.nes is that the "A" was changed to a "@." I haven't tested any other NES roms yet but it's possible that other will play in Contra 4's emulator. It's entirely possible that the built in emulator only supports Contra's mappers. I cannot test any other NES roms yet because I haven't unlocked any of the extra games. I've also found what I think is a file for a test stage and I've read through the interview in a hex editor. I also think I might have stumbled upon the levels themselves. I'll do a little more research into this once I get a better save file or beat the game myself.