The Real Ghostbusters (1986)

S6E4 Ghostworld

Janine, Ray, and Slimer head to the newly opened amusement park, Ghostworld, but soon find themselves captured by a sinister gatekeeper. This malevolent entity possesses them with the spirits of his ghostly minions. Meanwhile, Winston and Peter fall victim to the same fate! Now, it’s up to Egon and his overly protective mother to come to their rescue and save their friends from the clutches of darkness.