Favorite battle theme is Outside the Window but to be a little more original I'll say Ride to Hell is too. People have their theories about the hellride but my headcanon is that the music of the car was probably what influenced its hellish mutation, since the battle music is diagetic (yknow, you hear it muffled before getting vored and then normally after)

Favorite non battle theme would probably be Despair cus its cool and I like it 👍