I loved that background parallax, the audio, and how the game sped up as you play it. Overall the only thing I didn't like was the actual gameplay, because playing the game was in a simple binary state of alive or dead. There was no reward for playing well, and no ability to avoid death if you miss a single jump. I couldn't even tell by how much I beat my last score. At any rate, everything else was well polished and made falling to my death much more enjoyable. I appreciate that you followed the idea to take a simple game and polish it to a shine.