Simple, effective gameplay, but the gravity should probably be toned down a bit. The bee moves down very very quickly and up very slowly. Can feel a bit frustrating when trying to dodge attacks as you have to do so by moving left or right, since going up is a death sentence.
Other than that the attacks are also quite punishing as its one and done and they're hard to dodge. Perhaps a health bar and unlimited lives would be more appropriate?
Well done overall!