Good game Tim, just 10 minutes to the deadline. I did find that if you die, sometimes upon restart the guy start spinning. Also, the coins don't have any influence in the game.
I used the coins to flip the shooting elements over. Now, maybe they shouldn't look like coins if that was their intended purpose but I found them useful. I also haven't tried getting one of them all the way to the goal to see if there is some hidden achievement or something.