I don’t remember why I couldn’t take the weapon with me. Maybe it was the night part and I couldn’t switch? Or maybe I had a stupid weapon with me and just couldn’t switch. This was some time ago. I had to restart a lot until I got a sniper I think. I was using my normal gas the fish weapon which against a boss was not good at all.

I was also just very very bad at the boss fights. I found them annoying after just swimming around capturing fishies and decorating and farming lol.