I really had lots of fun playing the game! Very cool concept- and I definitely can see the game turning into a full game once you add more levels - one can play it for hours without getting bored:)
only small issue I can comment on, is when you get a damage and camera makes a shift sometimes it's a bit too much upwards that part of the character is out of the screen view - but it's a very minor issue and doesn't impact on the joy from the game:)