A simple audio file to replace music in levels such as Street Puncher or Rooftops, this requires Lemon/Melonloader and all dependencies listed.
Go to com.StressLevelZero.BONELAB > files > UserData > CustomAudio and place music_FistFightFugue.wav in there.
Copy music_FistFightFugue.wav and re-paste inside the last folder I talked about, then re-name it to the audio used in different levels, for example, music_Rooftops.wav or music_FunkyPark.wav for Rooftops and Halfway Park. The default is Street Puncher's own, file name being music_FistFightFugue.wav.