I wasn't very good at the game. I wasn't sure what the goal was exactly but I just avoided everything and ended up with a score of 0 every time. I am no expert.
The enemies were great. Nice design, and predictable yet challenging behavior patterns.
The sounds aren't very Nokia 3310. Clever use of flickering on the ghosts of your previous attempts. I'm not sure the Nokia could refresh at that rate but it's a good idea.