Vs. Reo

"Vs. Reo" is an unnamed theme from Metroid: Other M. It was composed by Kuniaki Haishima and orchestrated by Sachiko Miyano.
==Description==
This theme is first played when Samus Aran is ambushed by Reos on the catwalk, serving as the first battle theme heard aboard the BOTTLE SHIP. It is heard again shortly afterward when Samus is clearing out the Reo-infested Fly Pods in the System Management room, and again when using the newly-acquired Diffusion Beam to destroy the Fly Pods near the Subterranean Control Room in Sector 1 / Biosphere.
Like many other battle themes in Other M, this theme is evocative of James Horner's score for Aliens. It consists primarily of shrieking high-pitched strings and aggressive metallic percussion (the latter sometimes playing a "heartbeat" rhythm), intended to create a terrifying and adrenaline-rushing mood. These sections are broken up by tense, shrill ambience that crescendos into the next section.
This theme can be heard here: 
Category:Music
Category:Main Sector
Category:Biosphere