The art and music are superb. I like the absurd behavior and how bloodthirsty the duck are. It's really intriguing and makes you want to know why the duck is so weird. The animation is very smooth. My only complaint would be that it didn't have jump buffering and coyote time for the platforming parts. Since it's not a platforming-heavy game, it's not a big problem.
Very great game. Well done!