|This article is written from the Real Life point of view|
The original Metroid version differed depending on whether the game was the NES or Famicom Disk System version. In the NES version, there is a simple "whoop whoop" sound, while the Famicom version features a screeching siren. The Famicom version is included on the Super Metroid: Sound in Action CD, titled Escape!
The NES version also features an uplifting part that was removed in later versions, which made it sound closer to the original Japanese theme.
The original theme from the NES version can be heard here: , the Famicom version ripped from the Super Metroid: Sound in Action CD here:  (track contains several sound effects), the Zero Mission theme here:  and the theme from Echoes here: .
|Metroid Prime and Dark Samus|
|Abilities|| Metroid Prime: Particle Wave Projector • Seeker Missile • Snare Beam • Ultrafrigid Beam|
Dark Samus: Boost Ball • Charge Beam • Dark Echo • Missile Launcher • Phazon bullets • Shrapnel Beam • Stealth field generator • Varia Suit
|Misc.||VS Metroid Prime (Spider) • Metroid Prime Battle • Dark Samus Intro • Darkness • Escape • Dark Samus Biography • Dark Samus Gallery • Dark Samus Rooms|