The name of this episode in the United States is "The Tower of Terror". Following the 9/11 Terrorist Attacks, Kids WB pulled this episode out of rotation due to its title. Because of this, Kids' WB! refused to give the tape to Cartoon Network for them to air this episode in 2002. They have since conceded the rights to air it.
This episode's English title is a reference to the Tower of Terror theme park ride.
Meowth can be seen running on all fours instead of on two legs when running with Jessie towards the first hole James fell through.
Ash befriends a Haunter, who agrees to follow him back to Saffron City.
In this episode, Ash and Pikachu share an out-of-body experience, a real-world phenomenon.