to call these controls "floaty" would be a gross understatement, and collision detection is sometimes barely present. it hardly deserves a 4.0 rating. 2.5 would be more appropriate.
After maxing out 33 of the stages and collecting 898 coins, I'm afraid I've reached the limit of what I can do. Still, this is a wonderful game and I have wasted hours getting to where I've gotten.
the reason some people can't save is because instead of pressing 'quit game' when they leave the page, they just... leave... the page...
yeah, so press 'quit game' instead of not, k? problem solved.