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The main theme of Sector 1 is used for the sector in Metroid Fusion itself, as the title theme and as part of a medley in the Metroid Prime & Fusion Original Soundtracks. On that CD, the track is titled Sector 1 (SRX) SR388 Return Area. It is also used in the Metroid Prime 2: Echoes Bonus Disc when Fusion is selected in the chronicle. A remixed version of the song, arranged by Minako Hamano is also used in Super Smash Bros. Brawl as one of the themes that plays on the Frigate Orpheon stage, as well as the boss theme for the Samus clones during Zero Suit Samus and Pikachu's boss fight against them in The Subspace Emissionary adventure mode. The Brawl Sector 1 theme returns in Super Smash Bros. for Wii U on Pyrosphere. The original version appears in the Samus Archives Sound Selection released with the Special Edition of Metroid: Samus Returns, referred to as Sector 1 (SRX).