Beautiful concept.
Never have I seen or even heard of a game concept in which the game itself is turned inside out, becomes self-thinking and questions it's very existence. Not like this at least. Although the graphics and gameplay are as minimalist as I could ever imagine, I can come to appreciate them more when they revolve around such an intriguing and unique story.
The level design, addition of power-ups, and interactive blocks are things that raise that minimalist bar, however. The placement of these elements in some of the levels in the game presented simple, yet challenging, obstacles that kept the gameplay interest going. Sound effects were effective and appropriately matched every situation, from picking up items to destroying the floating "bugs", although I was a bit confused to hear the quack for the super-jump pickup.
Overall, this is an excellent example of what an extremely simple game can accomplish with the addition of a solid and interesting plot that keeps the player yearning to reach the end. Excellent work!