Awesome Music / Luftrausers

• The whole soundtrack can technically qualify for this, since the soundtrack is primarily composed of variations on the main theme, depending on what parts you've picked. Nevertheless, the music for the default configuration of rauser deserves special mention as the piece every player hears upon starting the game afresh.
• The theme playing in the stat screen between the missions, "Going to War" is more different than the gameplay themes, but it's awesome too, with military drumbeat practically saying "Now get back out there and show 'em what for!".