First of all, the art style is amazing.. I love how cute the cat was (poor duck) and the sparkling stars. With the limited palette, it's really impressive.
Wow, the levels are fairly challenging and I got up to the part where he gets captured by a bubble? I couldn't figure out what to do so I restarted and tried again and then...I gave up and jumped off and wow, that's the ending?
Concept wise, it's very creative, I've never seen a platformer like this...