Concept is simple and well executed.
Controls would be nice as the player will feel in control. The adrenaline rush of winning or almost winning doesn't come by just watching the balls roll (in which case it just feels like a long video you're watching.) With the controls, the level may perhaps even feel short! :D
Some powers or booby traps would be fun as well.
I notice that after the balls collect at the Finishing Line, they are still rolling about and the Rankings keep changing. Perhaps remove that entirely or freeze it at the end? (Is there really a need for two rankings?)
Other than that, awesome stuff NY Sneezy!
(Haven't gone through all the reviews, so pardon any reiteration!)
newgrounds.com — Your #1 online entertainment & artist community! All your base are belong to us.