I must say, I didn't like it. It doesn't make too much sense, suddenly I stopped shooting, there were no visible, or at least intuitive, way to know how many...arrows (?) I had available.
I just replayed again and seems like "people" is equivalent to "ammo"? But is also recovers health...
Sound effect is quite annoying as well, maybe you could use AudioSampleRandomPitch to break the monotony.
Congratulations on finishing it! It's a really accomplishment and I'm sure you learned a lot.