Cheers, man! Thanks and was cool seeing you play on stream! Yeah, I felt guilty every time I reused an explosion or laser sound. I'd developed it mostly without sound and well, due to time constraints I ended up letting the music be the main audio theme.
I managed to throw in controller support in last year's submission so would probably be an easy lift and shift. Aiming the turret with a controller stick is definitely harder though (for my sausage fingers anyway)
Edit: you mentioned about the music being a bit loud - I added a slider for that in my latest bugfix.