Have you followed pinballrockstar 's thread: https://pinside.com/pinball/forum/topic/the-crazy-mansion-by-the-pinball-amigos ? Innovations I remember from the thread: the coffin, the mansion rising out of the playfield, the layers of playfield each rolling in a different direction, the backbox (way over-the-top), the adjusting pitch of the lower playfield. And it's a fun thread to read every Friday.
-Rob
-visit http://www.kahr.us to get my daughterboard that helps fix WPC pinball resets or my replacement LED display boards for model H & model S Skee Ball