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Kicking it Old School in my modified Castle Grayskull.
I disliked how much unused vertical space the official build had, so I gave it 4 floors instead of 3. Note that the room below the trap door should be the jail cell depicted in the mini-comic "King of Castle Grayskull", which is different from the Well of Souls behind the jail door in the official build. I'm going to need the jail door parts from a second Castle Grayskull for that.