I simply love the roars of agony and despair you have implemented!
Fantastic work!
Also your art is great, you have put a lot of work and it shows! Such a polished game, with fail states (that I lack) and the lighting system really reinforces the sense of dread and alienation.
Pro-tip for any speed runners, place your plants on the center of rooms for added firepower when moving to the next.
Great work!