You can keep getting +5 points if you just fly back and forth between those fire balls.
not happening for me
only get +5 once a fireball has exited layout
perhaps you are going in and out of fireballs while others are exiting giving appearance of endless +5
however, I'm unable to read any of the ingame text popups that come up after each round
<img src="https://dl.dropboxusercontent.com/u/86190469/C2Help/A7txtBlur.png" border="0" />