Metal Slug X is an online PS1 game that you can play at Emulator Online. This free PlayStation 1 game is the United States of America region version for the USA. Metal Slug X is a single title from the many shooting games, platform games and action games offered for this console. If you enjoyed playing this, then you can find similar games in the ps1 games category. Metal Slug X game is from the various retro games on the site, and there are more games like this, including Metal Slug, Pokemon X and Y and Metal Gear.