There were a TONNE of stickers on this thing. You can see the pink stickers on the piece in the box art and they all needed peeling off and "sticky stuff remover" used to get rid of the residual crud.
There were a fair few places where I had to cut and carve plasticard to cover the holes in the structure which were originally covered by stickers. The gateways on both sides slide up and down to let both teams in!
All of the doors open.