12 days by only a few hundred several times in a row. I understand why you cannot be guaranteed certain $$ amounts, but it would be nice to know exactly how $$ is calculated.
Finally - got my hard badge! I love this new version. best new feature is being able to set the priority from first to last. Set the Spike-O_Pult to last to make it aim at the LAST bloon it sees and to ensure that you shoot down an entire line of baloons.
HINT: the slow moving balls are easy to avoid. Keep your distance from the fast moving balls and you will be well prepared for the sudden and rapid changes.