Back-Up is a piece of music composed for Resident Evil 4. It appears in the biohazard4 Original Soundtrack as track 7 of the "Aggressive Side" disc. It also appeared in the Biohazard 4 Best Track Collection.
The track lasts for 02:04 minutes.
- Itsukaichi, Keishin, ed (2005) (in Japanese). biohazard 4 Soundtrack Book. Capcom. ISBN 5-86233-012-6.
|biohazard4 Original Soundtrack, disk 2|
| Succeeded by|