Cute game!
I think it would be way more engaging if you had a smaller cooldown to shoot and more enemies!
Also the Footsteps sound made me go insane! Pls add some Background Music or Ambience so the player hears something else and not just that ever repeating sound.
The graphics and animation were really nice, I like them quite a bit!
(Btw the Master Audio I think was set to 100% initially even though the settings said 2%, changed after I adjusted the slider, but on the start it was LOUD)
In summary, cute game!