Loved it!
At first i thought it was way too hard because you got overrun with enemies too quick. Then i noticed my past lives would replay and still shoot enemies and thought that was really cool.
This made me think to create a "turret" life, just circling the map and spamming inward. I did so and then quickly realized i now have to dodge my own bullet spam!
Really cool game, little bit hard, but i liked that about it. It had a couple Aha! moments which i liked too. Very well done!