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- "Area 2 (theme)" redirects here. For the themes titled Area 2 in the internal files, see Area2 Basic and Area2 Add1.
|“||I'm always trying to include at least one musical piece from the previous title to satisfy old Metroid fans. It's like a present for them. For example, the music we used by following this theory is the jingle when Samus appears on the screen, and the music we prepared as the present for Metroid fans are the pieces for the lava caves in Metroid Prime and underwater music for Metroid Prime 2.||„|
Magmoor Caverns, also known as Lava Caves (ラヴァケイブス), is a recurring theme from the Metroid series. This theme has become one of the series' most popular songs, and has appeared in some form on most official Metroid soundtracks. It was composed by Kenji Yamamoto.
Magmoor Caverns begins its motif in C Phrygian, continues to play the same motif in D# Phrygian, F# Phrygian, and A Phrygian, the key in which the rest of the piece is set. It also featured repetitive synthesized chants that progressively grow louder. This results in the song having a constant feeling of dramatically building up. The melody of the song most often is performed by horns and choir, giving it an aggressive and climactic tone.
The original version from Super Metroid was also used as the song for the Chronicle entry for Super Metroid in the Metroid Prime 2: Echoes Bonus Disc. It is also included on the Super Metroid: Sound in Action and Play it Loud! Original Soundtrack Volume 1 (a compilation SNES album offered by Nintendo Power in 1996).
In 2011, the theme was performed by live orchestra during the Metroid arrangement of PLAY! A Video Game Symphony. In 2013, the theme was arranged by the WDR Radio Orchestra as part of Into Red, Into Dark in Symphonic Selections.
Magmoor Caverns was remixed as the main theme of the area of the same name, which appears in Metroid Prime. Compared to the original Norfair Ancient Ruins Area theme, this remix is less intense, owing largely to the downplayed percussion and the use of marimba instead of horns.
The theme from Prime can be heard here: 
The original Magmoor Caverns theme is one of the songs available for purchase in the Soundtrack Gallery of New Play Control! Metroid Prime and the Metroid Prime Trilogy. It is also included on the Metroid Prime & Fusion Original Soundtracks album.
The theme from Pinball can be heard here: 
This track is always played in the Volcanic Sector in all three game modes, unless the players are fighting Kraid in Assault Mission mode. When the player is battling enemies, a militaristic drumbeat is added to the song. The song may also be unlocked as a prize on the Jukebox in the Nintendo Land Plaza.
The theme from Nintendo Land can be here: 
Metroid: Samus Returns features another remix of this song. This version is included in the Samus Archives Sound Selection soundtrack packaged with the Special Edition of the game, titled Magmoor Caverns just like the Metroid Prime version. The game's internal data refers to the song as Ravacaves2, while the Sound Test titles it Area 2.
It is played in rooms with extreme heat throughout SR388. Because superheated rooms are present in Area 1 through Area 5, the theme plays in all of these areas. It also counts as a boss theme, as some Metroids are fought in extreme heat while this music is playing, overriding their own respective boss themes. It is also heard in the Launch Trailer for the game.
It is also included in Super Smash Bros. Ultimate with the title Magmoor Caverns - Metroid: Samus Returns. After being purchased from the Shop for 300 coins, it can be played on any stage from the Metroid series. It is also played on The Great Cave Offensive during the Diggernaut Spirit Battle.
The theme from Samus Returns can be heard here: .
- In the August 8, 2018 Nintendo Direct, the Samus Returns remix was titled Area 1 - 5 Torrid Zone in the Ultimate Sound Test, referring to the hot environments in Areas 1 through 5 where it is played. This was changed before the release of Ultimate, but it is still named d22_srt_areabgmnettai.lopus in the internal files, with nettai (熱帯) being the Japanese word for "tropics" (another term for torrid zone).