Nice Lovecraft theme and quite hard (haven't managed to beat second "level" yet, but I'll give it one more try). Love the visuals when the ancient one appears, but controls are clunky. Speed of the character is slow imo, navigating the weapon is quite pain, which doesn't help with the amount of enemies spawning on the map, and when you loose all your health, nothing happens. Some end game screen with restart button or something would be nice.
But I liked it, great job!
EDIT: I miss the restart butto/option a lot.