Haunted House was a game played with a 3D board. When set up, it consisted of 4 rooms, a staircase, and a central chimney. The game pieces moved round the board; you drew cards which would turn you into a mouse (which meant you couldn't move) or turn you back into a child, or let you drop the Whammy Ball down the chimney - this was a steel ball that could come out in any of the 4 rooms, and triggered a moving piece that knocked down any game pieces in the vicinity, forcing them to go back to a safe spot on the board.
The ultimate goal was to make it up the staircase to the Charmed Circle where you were safe - the first person to get there won, but you weren't safe on the way up the stairs... "Be very careful on the stair, The whammy ball could get you there" was one of the pieces of doggerel you could come across in the game.
Most of the web pages I found gave the name "Which Witch" - I thought I was going crazy, as it was obviously the right game, but I was sure it had been called 'Haunted House'. I finally found a site that said "Which Witch" had also been sold as "Haunted House". To add to the confusion there was a different game also called 'Haunted House'.
The one I'm thinking of is pictured on this web page: http://www.boardgamegeek.com/image/12472
I loved the game, and played it on my own when no-one else wanted to play.