The game now has a risk-reward mechanic

You can call waves early for extra money. The earlier you call them, the more money you get for your bravery. You can use this extra money to dump some upgrades on the new cannons!

Also, look at this cool UI for seeing how much enemies you have left on the wave!! Thanks to the feedback that it was a bit hard to see how much game there is left. And also a slight UI redesign... 

And now that you can call enemies earlier, it means your performance can be timed... Therefore Recolonizer now displays the time it took for you to beat that level... or get recolonized in record time.