Children of the Atom has an excellent musical score, my favorite themes are the ones for Wolverine, Silver Samurai, Omega Red and Psylocke. Akuma does not have his own theme.


CHARACTER THEMES

Colossus
Cyclops
Iceman
Juggernaut
Magneto
Omega Red
Psylocke
Sentinel
Silver Samurai
Spiral
Storm
Wolverine


ENDING THEMES
Characters mostly share ending themes in this, so I've just given them generic names.

Ending 1
Ending 2
Ending 3
Ending 4
Ending 5
Ending 6


OTHER THEMES

Avalon falls
Character Select
Continue
Credits
Game Over
Intro
New Challenger
Victory