Such a cool entry! I think it would be nice to have some general direction on where to find the items/tasks you need to do - in the first run, I think I've run 2 rounds around the tower, but couldn't find the last item. It also might be a good idea to only spawn the monster(s) after you completed the first task, I think.
But these are just nitpicks. You did a great job on polishing the game, and sound design and the overall atmosphere are pretty well done!