I don't think this game is finished yet (please correct me if that's wrong) but despite that, you can see the bones of something really special here. The environment is eerie, the vibe is fully committed to in terms of art style and music, and moving around feels fluid and fun.
I did find using the dash button (spoiler warning since you discover the dash hotkey partway into the game) to be awkward while moving to the right because of how close C is to D and spacebar. I ended up using my right hand just for the C key, which did feel better.
Also, (spoiler warning 2) the pink head was terrifying! Moving through that room I was never sure if it would hang out idly or dive me, but it seemed to choose at random. Possibly a bug but appropriately scary nonetheless.
Overall, a really compelling concept and I'd be excited to play more if you choose to continue development. Nice job!