Ant Twerps

The evil red ant colony is invading the territory of the green ant colony, and only you can save them: You are the blue ant queen who is fighting for the green ant colony.

In this 2D physics puzzle game, you can spawn the queen by clicking anywhere on your screen. Throughout 20 levels, you must knock all red ants off the screen while keeping the green ones on the screen. The queen must never fall off the screen, otherwise you'll lose (unless you need to restart).

You may think this is just a SIMPLE physics puzzle game. However, the red ant colony are reinforcing their army by recruiting some fire ants (which will explode when touched by other ants including its kind), as well as some very tough ants equipped with armor (they cannot be pushed by anything except for large boulders their size).

Can you save the green ant colony from the evil red ant colony before it's too late?

If you accept this challenge, I shall wish you the best of luck.