The first few levels gave me the impression that it was a simple game but once you learn to turn around and double jump, things become tricky! I'm enjoying the challenges and now I'm stuck on level 10, after the check point... aaand I have to go, but I'll be back to figure it out!
Nice interface and level design: 5/5 :)
Edit regarding the achievements: How is double jump and dash counted? And how do you avoid the eagle?
PS: Adding a jump counter could be nice.