Thanks to the developer of this Metal Slug X [SLUS-01212] rom/ Emulator for submitting the file here, so others can also enjoy it. Its just 33.8MB only, and it's been downloaded 143439 times, you can imagine its popularity from the number. I request you to provide the suitable rating to this Metal Slug X [SLUS-01212] file, It will help us to improve.
NOTE: All the Roms/ Emulators available here are submitted by the users, we have tried our best to verify the files, and only the files which are secure are made available. Some antivirus mistakenly assume these files as virus and warns you. But I assure you these files are safe and you can use it.