Last month we received the newest, non-spinoff entry in the Metroid franchise in over 7 years, appropriately titled Metroid: Samus Returns (doubling as the Metroid II title and a pun). To celebrate, we've revised all of the arrangements from the first three Metroid games and have even added in some new ones. Let these hold you over until Metroid Prime 4 releases!
[NES] Metroid
"Brinstar" by Brian Auyeung & Adrian Currier
"Ending Theme" by Olimar12345
"Escape Theme" by MetroidHunter26
"Game Start" by Olimar12345 [NEW]
"Item Found" by Megaman64
"Kraid's Hideout" by G-Han
"Norfair" by Olimar12345
"Ridley's Hideout" by Tranzlater
"Silence" by Olimar12345 [NEW]
"Title Theme" by Olimar12345
"Tourian" by Olimar12345
"Zebetite" by Olimar12345 [NEW]
[GB] Metroid: II Return of Samus
"Ancient Chozo Ruins" by Olimar12345
"Baby Metroid" by Olimar12345 [REPLACEMENT]
"Ending" by Olimar12345 [NEW]
"Metroid Encounter" by Olimar12345 [NEW]
"Miscellaneous Fanfares" by Olimar12345 [NEW]
"Queen Metroid Battle" by Olimar12345 [NEW]
"Title Theme" by Olimar12345
"Tunnel Theme" by MetroidHunter26
[SNES] Super Metroid
"Big Boss Confrontation BGM" by Brassman388
"Brinstar - Red Soil Swampy Area" by Maelstrom [NEW]
"Ending" by Maelstrom
"Maridia - Quicksand Underground Water Area" by Brassman388
"Maridia - Rocky Underground Water Area" by Olimar12345 [REPLACEMENT]
"Small Boss Confrontation BGM" by Olimar12345
"Theme of Super Metroid" by The Deku Trombonist
See you next mission!