I'm in the process of going through the digital copies of ROMs that I have and extracting which ones I can from them, partly for the fun of it, and partly because I'd like to avoid downloading them if I can. For MMLC, after extracting the files from the ROMFS, I'm pretty sure I've determined where the ROMs are. Problem is they're not lying out in the open - here are the filenames+sizes: Filenames and Sizes MegaMan1.cro ------ 2,456 KB MegaMan2.cro ------ 4,652 KB MegaMan3.cro ------ 4,724 KB MegaMan4.cro ------ 9,156 KB MegaMan5.cro ------ 4,556 KB MegaMan6.cro ------ 9,296 KB I've ascertained that if the ROMs are indeed in there, there's much more than the ROMs themselves. That doesn't surprise me considering how the games are emulated, but that leaves me wanting since I'm not sure how to begin looking in the files. I read in a thread here that .cro files are essentially .dll files for the 3DS, which lead me to this article on 3DBrew. Except that didn't help me since I don't know how to read that. What I have tried doing is looking through MegaMan1.cro in a hex editor and looking for the start of a header for the game, either a TNES or iNES header, but no luck. I'm confident the ROMs are there, I just don't know what to do next. Can someone give me some pointers here? I know this is pretty useless, but at the very least it's a good exercise.