Haunted Mansion is an arcade-style action game for the Commodore 64 that was published in the February 1984 issue of the Compute's! Gazette. An evil witch has catnapped some friendly neighborhood cats and brought them to her spooky mansion, where she is planning to turn them into special "witch cats". While she is out looking for more cats, you must break into her maze-like mansion and navigate all sorts of spooky and scary creatures in order to rescue all the cats before the witch comes back.

For this run, nymx deliberately starts the game with a specific RNG seed in order to get the most favorable layout and beats the game in record time.