The background music was hilarious but also set the vibe, no lie. I finished the whole game with a absolute hate for crabs.
The design is quite nice, and so are the sound effects. They suit the game well and don't seem absurd. The tutorial is also very clear, and I had no trouble understanding the controls.
My only complaint is that the attack button is set to F. I don't know if it was deliberately chosen to make it difficult, but pressing F at the same time as WASD is a bit tricky.