Based on creativity and enjoyment it's 5/5. It's really amazing the way you designed the mechanics and the levels, I finished all of them and enjoyed a lot! One small thing I'd suggest is to check the player's velocity before resetting the level, because in one level the ball was still sliding down and I thought it would reach the goal, but the scene had to reset. Truly, this game has a lot of potential if you polish and add more interesting levels.