nice work! usually having to start a game over from the very beginning is rough, but it didn't feel that way in this game! the movement & shooting mechanism worked really well & felt good to use. I like the shadow effects as well!
The enemies (especially the purple ones) sometimes seem to spawn out of no where and then before you can even react you're dead. That got pretty frustrating after a minute because it made it hard to progress in the level. I like that their shadows would sometime appear outside the path, maybe have them always spawn there to give the player more time to react. But otherwise, good work!