Very cool style and ambiance with the fog, lighting, and sound effects. Objective and controls were pretty intuitive. The crab thing chasing you needs more polish though, and the game gets a little boring once you're ~60 or so shell things in. Maybe switch it up with new features after you collect a certain amount, like a weapon/tool to freeze the thing chasing you temporarily, or just cut down the number of shells needed to collect. Stamina bar could also be a little bigger.