That was fantastic! Loved the atmosphere between the dark setting and music. Really made me FEEL the dread.
Also, a really clever twist on the theme. The juxtaposition between the chill game you made last game jam. Really got a kick out of that.
And the game looked great and the darkness/lighting was perfect.
One bit of feedback I have: I it would've been nice to have a little more "juice" - primarily when hosing the plants, seeing them burning or hearing some crackling or something just to make it clearer that I am in fact hitting them. And a sound effect or something when picking up more ammo.
But great job!