a creature from the series of the same name for the NES

a monster that has the ability to suck the life-force out of any living creature

The games are a series of video games produced by Nintendo. One of the company's most successful franchises, the series spans through several Nintendo systems, starting with Metroid (1986) on the Famicom Disk System, and various ports, sequels, and remakes on the NES, Game Boy, Super NES, Game Boy Advance, GameCube, Nintendo DS and Wii.

Metroids are a fictional species of parasitic alien creatures from the video game series of the same name, originating from the fictional planet SR-388. Having been bio-engineered by the birdlike extra-terrestrials, the Chozo, their original purpose was to combat the X Parasites, in hopes of keeping them from overrunning the planet's ecosystem. Metroids feed on the "life energy" of their prey in a manner similar to leeches draining a host organism's blood.

Metroid series of video games. It was released first for the Famicom Disk System on August 6, 1986, and later for the Nintendo Entertainment System in August 1987 (North America) and on January 15, 1988 (Europe). The game was produced by one of Nintendo's most prolific game and hardware designers, Gunpei Yokoi, and was directed by Yoshio Sakamoto.