for the last level its easier when you wipe out stuff above the bottom princess, you should have 3 shots left after doing this, I used only triple bombs shots
I made it!!! My previous best: 1,600,375.
Now: 3,999,986, almost 1 mln more than needed for badge. I've used less than 5 nukes, golden gun - shooting when turtle is slowing down, ammo replenished once, time: about 10mins. In the end i forgot that I has 63 nukes to use, so in that way I will have more than 4 mln, lol.
 "The Legend of the Golden Robot"){kind=icon}
 "Zilch"){kind=icon}
 "Crush the Castle"){kind=icon}
 "de Blob 2 Revolution"){kind=icon}
 "BoomsticK"){kind=icon}
 "Toss the Turtle"){kind=icon}