|This article is written from the Real Life point of view|
The Metroid Prime 2: Echoes Theme is the theme that plays over the Title Screen of Metroid Prime 2: Echoes. A deeper, more ominous version of its first few seconds is also used for the post-credits ending where Dark Samus reforms herself above Aether. The Echoes theme is also used on the main page of Metroid.jp's Echoes site.
Outside of the games, the Metroid Prime 2: Echoes Theme was also used in a 2017 First 4 Figures video (viewable here) demonstrating the changes made to the sculpt of the new Varia Suit statue, since its original unveiling in 2016.