Infiltration is a piece of music composed for Resident Evil 4. It appears in the biohazard4 Original Soundtrack as track 1 of the "Aggressive Side" disc.[1] It also appeared in the Biohazard 4 Best Track Collection.

Music information

All music for Resident Evil 4 was composed by Misao Senbongi and Shusaku Uchiyama, but it is unknown who composed individual pieces.

In-game usage

In Resident Evil 4, the track Infiltration is only played twice in Salazar Castle and twice in The island. On Assignment Ada, the track is played once. Infiltration is only played on the game when the player must "infiltrate" a certain area of the game (ex. the cafeteria, The castle parlour, the start of The island, and the waste disposal room. A unique fact is that when the track is played in the cafeteria and the start of the island, at both places, the track is played after Leon encounters Ada.




  1. CPCA-10126~7 biohazard 4 Soundtrack Book. VGMDb. Retrieved on 2017-08-10.

Preceded by
Beginning of disk
biohazard4 Original Soundtrack, disk 2
December 2005
Succeeded by
Ganado Ⅴ
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