The music reminds me of the Pink Panther theme song. I bet it's the smooth jazz. I really liked the mechanics of the game, having the switch different guns to kill different enemies. My one issue is that for white pistol with an attack range of 1, it sometimes kills the white ghosts and sometimes doesn't, resulting in a death. I'm not sure if it's something I'm not doing right or if it's a glitch. But, I'd work on making that a little more clear.
If you would like to see my submission, please check out Napalm Town: https://itch.io/jam/gmtk-jam/rate/159296