Over all there is a concept for a good game here. There a appears to be to little happening. Moving the ducks around it fun at the start but then it becomes boring to quickly. My adding more player feed back in the way of partial effect or more interesting audio cues it could juice up the game making it more enjoyable. I also felt the impulse to stack the ducks in a way that there was a full line of ducks and feel that rewarding a constant steam or ducks could provide the parameters for some interesting emergent player behavior.