It would be more enjoyable and easier to evade incoming attacks if the ship could go in 4 directions instead of 2, and "M" is a bit awkward to reach, my advice for future projects would be to choose a key more frequently used in games. In my experience it's more intriguing to fail on the first try, hard but doable obstacles. I felt like the extra life came way too quick, If you make the journey challenging and hard, the reward / end goal will be much greater. Nice game.