I really dig the graphics and the whole concept, though I feel like this lacked some nice game/level design. Maybe if the quacks were used with a cooldown, for instance, and would make the ghosts go away, could have made for some interesting gameplay.
Though I really, really dig the esthetic, and the movement itself felt really nice.
The whole quacking felt a lot more like a chore though, since the lighting was very disorienting.
Overall, very unique, felt like with just the right changes it could have been a very very fun game to play through.