Fun and simple idea, and nicely executed! Also in some ways brings back childhood memories of playing snake, even though the gameplay is different :) Movement feels good, although a bit too slow at the start though for my liking! I was kind of ready to move on once I reached about 300pts because I felt there wasn't much changing, but at like 700pts or so it became really fun because you were more in control and more active a lot of time instead of just waiting. I'd say you could easily bump up the starting speed to emphasize the strengths of your gameplay :)
Great work!