Knowing the MSX2 emulators code already exist and are of high quality, knowing you are going to make it feel as close to original as possible, if I were Sony, I'd choose to use an emulator and extend it here and there with native PS2/whatever console code.Metal Gear is from Konami, not Sony.Do you remember a bunch of MSX1 games 'recompiled' to be native PC binaries? Maybe they use a similar recompilation/simation system, generating native binary from a ROM, and then extend it with extras.Yes and i remember the Konami MSX collection for PSX and Saturn and collection II & III for PSX, where there are a bunch of msx1 games, then Konami used a MSX1 emulator for sure, i have extracted the roms my self and i use them in msx. Ive never played metal gear 2, i know there is a fan translation for the MSX rom.But on the playstation 2 game metal gear solid 3 on the second disc as extras there are the MSX versions of Metal gear 1 and 2, with some minor edits like the picture during radio conversations.More interesting is though that metal gear 2 got an official translation.I assume the games are emulated on the PS2, instead of reprogrammed.That case, shouldnt the rom be hidden somewhere on the disc?I would prefer to play it through bluemsx since its very accurate instead of on the PS2maybe we can find out.