Hehehe, I really love the vibe of this. The dramatic lore is fun and the knife animations are great. Feels like a game you could find on the DS.
Few thoughts:
I noticed quickly that the bell pepper is invincible so i ended up disincentivized from using any of the other veggies. Coming up with some good reasons to use the others would add a bit to the game.
I felt like sometimes the knives were moving in weird angles. i assume that this was mainly to keep the knives visible. A solution could be to make the fov of the camera a bit wider and bring it in, so there's more perspective shift happening, that would keep the knives almost always visible except in the center of the camera.
I really like that the game has a proper menu and a saving function.