I think we need to abandon the idea of having a functional boss fight 🎪
I don't know what I did, and I don't know what you did, but honestly you already did great enough.
For some reasons the final boss would always just fire a round of bullets, and then gave up. Even my own allies gave up after a while. You said that you've playtested it many times and it worked fine for you, and it seems that it works fine for everyone else, so I have to assume that maybe my computer is just cursed...
Anyway, love to see the rest of contents getting fixed. The 3rd level is great for sniping. Love the janky car physics. Though I have to admit that it was pretty empty. Kinda wish that there were more enemies that I can ram through with my car 