I really like that you played the piano for these piece, it was really well composed and fit the narrative well.
The slow introduction to the games mechanics were also laid out really well. I think the character could move a little faster, shift increasing heart rate is a cool mechanic IF the normal move speed wasnt so slow. Also being able to handle multiple items (maybe even just 2) would have been nice as well so I could stage items. There was a lot of back and fourth.
Narratively, I always love a coma game lol. I enjoyed exploring the spaces, then reordering them to be proper. Overall great job! Maybe to help tie it closer to the cooldown, the player could read a note thats like "DNR, pull plug at X", which is a clear reason for the timer.