猛鬼霸王花 (1990)

Original title: Meng gui ba wang hua

To cut down on expenses, a Hong Kong police superintendent orders a captain to take a group of S.W.A.T. team rookies to a rigorous training camp, hoping to force them to resign after undergoing grueling training courses. However, events get a mysterious turn when the rookies, on their break, discover an old Chinese Ouija board and decide to try it out. The game backfires when a reckless ghost is unleashed.