Haha, I beat the game with this - (1 moab missle - to aid killing moabs, obviously, 1 freeze tower - support in beginning, 1 beacon - every tower was in range of this, and a crapload of lightsabers. They are REALLY good in groups)
Wow, nice man. I had to get like 4 super monkeys and 6 MOAB maulers to beat it xD. You should really see the vid Tass uploaded. He beated first track on hard with no lives lost.
I believe the pattern of bloons are the same for all three difficulty levels, it just goes for more rounds on the harder ones and, yes, the stuff is more expensive. The trick is to get a nice set of towers so you can start building Banana Research Facilities, because there is diminishing returns on cash in the later levels.
