how the f*** are you supposed to do? I mean, WTF!? All the towers or what they want to call it is bullshit!!!! I built all, on the best places, and they take about a 1\10 of there lifes, and they attack so f**** slow, seriusly, WTF!?
corithan, to get the challange on level 24, first, shot in the middle (on the green block) and restart if you make to many red follow. And then, when the green blocks have travelled a bit (ofc they should still be on the screen), freeze the time. Then try to shot over all the red blocksand hit the green. Then the green blocks will fall down, but the red will stay.
i'm going to send this author an email, saying that he really should make a sequel, so rate this comment as good and write an own comment on what you think he can make a little bit better, so i can write that too. And dudes, this game ROCKS!