Simple but compelling! I got to Room 70 and had to stop, but curious if there is an end? Presumably not otherwise there could be a theoretical maximum high score
I liked the diagetic use of the light dimming as well as the background music sting coming in to indicate the player was running out of time, added to the stress! I did notice that it seems like the hitboxes aren't quite lined up with the shader distortion but that would presumably be a little tricky to implement.
I liked that the papers taking some time to burn introduced a strategy of trying to hit papers that are under other papers, to avoid the top papers blocking those underneath them as they burned away.
Good work mate, hopefully someone can challenge the high score! :)