Purple Invaders

Purplish, green and blue faces together and against each other. The rules are that you must destroy the purple ones, save the greens and blues should be somehow cleverly used to meet the first two conditions. A major role plays gravity and the exact timing. At certain moments you will wonder how the proper solution should look correctly in the end. When you click at some of the essential buildings, often it does not show any consequences, or if it's worth something. So you will usually repeat a certain level, but because each round is original, it doesn't matter much. In addition there is a nice level editor, but many of us will not want to hassle with it, am I right? :-)