This is a really interesting concept! I actually really loved the art style, the simplistic black and white gives it a really cool vibe. And once I figured out what I was doing, I found it kind of fun to manage these, things, and make them destroy mountains and waves.
I don't know what these creatures are but the fact that they eat by destroying mountains is super interesting. I also loved the names for the different status, and how panicked they get. It's satisfying to clear the whole screen.
Introducing the mechanics in the menu is a super clever idea and I loved that.
My problems were that, at the beginning of the game, I had no idea what I was doing. I didn't know that I could move the camera with WASD, and where my camera first was no mountains spawned, so I didn't know what the waves were. I didn't know how I was supposed to feed my guys. I think that could have been explained or demonstrated a little better. I don't like the idea of a flat out tutorial cause that doesn't feel like this games vibe, but something cool like how you did it in the menu.
Also, not entirely sure how it fits into "You are not the hero". Is it because we aren't the creatures?
Good job!