Decent, but flaky
Good concept, well executed, and fairly balanced, but with a few unfortunate bugs.
When your mouse goes out of the flash window, the game seems to read this as the mouse being dragged back to 0,0 (at the top, it seems like the point it reads as this is slightly lower than off screen) With an easing form of motion like this, there really is no way to prevent the mouse from leaving the flash window, but the fact that you're suddenly dragged backwards so abruptly is jarring. Not knowing your code, I hesitate to suggest a specific fix, but there is a pressing need for one.
As for the ads issue, the only one I've run into is one where it hides your cursor once it finishes loading (whether you mouse over it or not, let alone click), which is rather annoying at the least. I would suggest either a false cursor (something that sits exactly where the mouse is, generated by flash) or adding something that makes certain the cursor is always visible every frame.
Sans cursor issue - 8. The ad issue would have been another point against you, but I don't like punishment for known faults, even if they do persist.