Every neutral area in Bionic Commando play Amongst Allies for their music (the areas with white numbers and red background, 13-19). The track is brief, but you rarely spend much time in neutral areas. The title comes from the Bionic Commando soundtrack.
Bionic Commando (NES)
This is the original version of the song, it is track 10 in the NSF file.
In the liner notes of the 8-bit soundtrack, Gavin Bachner writes:
Bionic Commando: Rearmed (W32)
The song was completely remixed for Rearmed.