hey, i took out the bombs, and found out this tower is really well built. i wanted to put a block underneath it with a high attraction setting so the whole thing would collapse. i had to set the density to the highest setting (it was a small block, about as big as the top block on the arch at the bottom, and it had a mass of 520kg.) i had to set the attraction to 80 to make it collapse. you should try it. oh, and make the block a killer, otherwise all the other parts will occupy the same space and explode.
awesome. thats really all i can say. phun needs aerodynamics. and this proves its possible. it just needs to be automatic, instead of having to hold down W and J.
