Great game, but doesn't really take advantage of dimensions. I've seen the movie (our geometry teacher used it as a reward for us doing well) but never read the book.
I'm kind of wondering how to deal with an emitter on a hill/plateau. If the creepers fill the space before you get there, how can you get them off of the hill? Do you just put a collector or relay right before the elevation jumps, send in a few blasters, and hope that they clear a space before the creeper destroy them?