The polish really stood out, as everyone else in the comments has already been saying. I don't play puzzle games often enough for other feedback, but overall it seems like a well executed concept using the themes. Good work with this game!
This is a good game, I had fun figuring out the mechanics, and appreciate the pixel art. I don't play too many platformer, or puzzle games, so it's difficult to give other feedback, But great work!
I agree with what the last comment says about the potential with better damage feedback. I'd recommend leaning into those glitchy visual effects, like what you have already for the kernel.