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The Burning Lava Fish is the theme of the Vorash battle in Metroid: Other M. A shorter version is heard well before the fight, as it is attacking Samus Aran while she runs through Sector 3 / Pyrosphere. The theme is also heard when Samus is escaping Sector Zero, right as it begins to break up and fall into the vacuum of space before she activates her Gravity Feature. It appears on Pyrosphere in Super Smash Bros. for Wii U, and is included in the Samus Archives Sound Selection CD with the Special Edition of Metroid: Samus Returns. It was composed by Kuniaki Haishima and orchestrated by Sachiko Miyano.
It can be heard here: