I have a lot of fun playing this game! I am a big fan of platformers and thought it was executed very well! The only thing I would have done different was included something in game to let the player know what actions they had unlocked. After the 3rd star it took me a bit to figure out I could now jump while sliding on walls. Also, after unlocking the wall slide jump I was able to get to the heart before collecting all of the stars by just jumping up the wall in front of it until I went over.
All in all I really enjoyed playing it and thank you for making it!