I played this game on my stream (VOD).
Overall, the graphics were really cute and the aesthetics fit together well. We had some trouble with the controls though. It seems that moving the right joystick on the gamepad doesn't rotate the camera, but for some reason, it rotates the axis of movement of the duck. For example, initially, the duck would move to the right when the left joystick moved to the right. After fiddling with the right joystick, the duck would move up/away from the screen when the left joystick move to the right.
The levels were also challenging, but it felt that a large part of the challenge was the viewing angle, and not necessarily the level itself. We recommend having the right joystick control the camera angle, and the left joystick affect the movement of the duck relative to the camera (e.g., moving the joystick right always moves the duck right on the screen).