Post your playable Crush the Castle 2 maps. There are other threads for talking about CtC2. If it's not good for shooting at or interesting to look at don't put it here: NO castles that fall apart by themselves, NO random junk piles.
Not my easiest of challenges, and there is a lot that can go wrong - which adds to the fun of it. If you get this first go I will be very impressed. If you can do it at all I will still be impressed.
There's nothing wrong with reusing good ideas, I like to do the opposite - make the castle more difficult to destroy if the vortex is used (e.g. my putting an enemy down a whole that will get covered with rubble).