Thank you for the great feedback:
I think you found a bug in the blob enemy character. It might be that the collider is still active after it dies while the explosion is going on. I will look into it. (The blob enemy was added just before submission closed; you can see this because the solution video does not have the blob enemies in it.)
I know what you mean by final bosses' bullets. Tbh, it was a bit hacky in them spanning randomly. I wanted them to spawn spirally, but I would have to learn how to do it.
Feedback, something I know was missing, but I didn't have enough time to do. I certainly want to improve boss fight feedback, even something as simple as the hit sound with the dangers. I am planning on adding boss death animation.