Nice game, it looks quite nice and the bullets duplicating after hitting a wall is a quite interesting mechanic! It also remembered me a lot of a game I worked on a looooong time ago: both of them have the slowmo thing and are topdown, so it was quite nice to see something similar :)
Hope you won't mind some feedback: I would suggest to not have the music reset when the player tries again. It might seem like a small thing, but it gets a bit annoying after some time to keep hearing the beginning of the music. Also, likes CerosWare said, the teleporting is bit disorienting, and a timer or some other indicator would be nice!