A lot of potential here. The turrets shooting speed to enemy count could use a bit of balance. Maybe if the turrets shot more often or enemy spawn count was lessened a bit on later levels, the balance might feel more on point.

Had a lot of fun and got quickly hooked, but I couldn't play for long because the overall effect was making me a bit woozy. That aside everything's there for a fun time. If you ever expand on it: More turrets would be cool, and since the turrets already target you, it would be cool to activate a mode where you draw their fire directly, since their prediction of an enemy's position isn't very good, to direct fire at a point of your choice.

Cool stuff!