Metroid is an online NES game that you can play at Emulator Online. This free Nintendo game is the United States of America region version for the USA. Metroid is a single title from the many platform games, arcade games and metroid games offered for this console. If you enjoyed playing this, then you can find similar games in the nes games category. Metroid game is from the various retro games on the site, and there are more games like this, including Metroid Fusion, Super Metroid and Metroid - Zero Mission.