For those that think this game is hard...it has a really difficult learning curve. Most of the levels require very limited ways of winning. But, with the right combination of towers, most of the levels are fairly easy.
Jigokuro: Dps is supposed to stand for "damage per second." However some people think it means "per shot."
As others have said, it would be nice if we had something to do with that money other than it going towards score. That is my only problem with the game. Very well done.
@Draco18s: How in the world did you have a hard time on the first level and you are level forty friggin six? As Darkruler said, the first level can be beat with two towers. One thing that might help is to place the towers in between paths so they can hit twice.
For those of you complaining about the game being hard...yes, it is...only if you don't know how to play it. For goodness sakes people, go on youtube and watch how people are beating this. For the sa4 challenge...at first its tricky, but once you got a good juggle going, even a caveman can do it. Point click, point click.
Found a glitch upon the load up...you can press the right squares before the game fully loads thus giving insane completion times. Maybe its just a fluke, but in reality, I can only muster a 1.4 time. I guess none of this matters anyways seeing as you already have a "sequel" to the game that does not have this issue.
You people crack me up giving low ratings just because you lack the skill to play a game. Rate a game based on the creator's skill, not the fact that you cant get the badge.