Haha. I tried building in the end of the world. Its crazy. You can only build in one direction, and up. Hmm... Normally, you can move a brick up, down, back, forward, left, and right. In this place, I could only build left, right, up, and down. It was really odd. No matter where I fired at the baseplate, the ghost brick appeared in the same place. Sometimes bricks would disappear, or the terrain would "overlap" the bricks. Crazy stuff.