This game is really weird. It’s a good game, but… how the game design is made is weird. If you shoot the enemy, you lose more life than avoiding it (and avoid enemies is easy: since you can’t got hit by touch, just be on one side and jump when it’s time and you are done), it’s only one type too, so the enemies should be more powerful and different, you should manage better the enemies and the difficulty since the game generate levels with the same difficulty. Also, this: 
The game is good, but should be improved.