Cool little game, thanks for submitting!
I think the music is really fitting, it works really well with the art. It really creates an interesting atmosphere, and the game overall reminds me of old games I used to play. Nice vibes!
One thing I didn't really like is the mechanic of having to pick up or drop items. I feel like it would have been a lot more fun if you were able to shoot/heal at all times, and dropping the items to move between rooms doesn't.
That time-limited room was quite challenging. Also, that red thing that spawns when you attack, why does it look so mesmerising?
I also ran into a few small performance hitches, but stuff like that is hard to control in a web game, I think. It could very well be itch's fault!
And good job finishing a game, it's always a difficult undertaking.