Good game. I think the mechanics were well implemented and unlike most people on here you didn't for the game into Fullscreen which is great and made me enjoy your game more.
One thing I should add but some might skip the tutorial section like myself so feel a tutorial at the beginning of the level would of been better implemented and just had a bool to check if u had done the tutorial or not so didn't repeat again if u played it again but I am sure u did well for the time u had.