I was surprised at how many levels you managed to make! I liked the simple but versatile mechanic. The main thing I'd do is let you keep your stars after you die, or at least add some sort of health bar so you  don't die in one hit. It was frustrating to get through while collecting all the stars, only to die to an annoying bird. The camera distortion also caused some odd graphical bugs on the edges of the screen for me, but it was easy to ignore. Overall, I enjoyed it.

Too bad there isn't a Linux build, I couldn't play your game :(

How'd you do the 'screen warp' effect? I love it!

Neat! I didn't realize I had a double-jump until retrying the 2nd level a few times, but I had a good time switching between day/night to find the missing days.