Episodes 1 through 3 of this story are among the 97 missing episodes of 60s Doctor Who. The fourth episode exists, and was released on the "Lost in Time" DVD set. However, there is a full novelization of the adventure, and dedicated fans recorded the audio of the entire thing anyway.A reconstructionnote can be watched here. It includes Episode 4, the only one remaining.
- Bowdlerise: In the audio release, Peter Purves's narration talks over the series' sole instance of the N-word (the unbowdlerized version of "Eenie Meenie Miny Moe").
- Deadly Game
- Family-Unfriendly Death: The shot of Cyril's charred corpse is surprisingly graphic. However, it is not known to have been cut from any print, despite the cutting of less-graphic deaths in other stories.
- The GM Is A Cheating Bastard
- Hoist by His Own Petard: Cyril spreads powder on a triangle in the hopscotch game to make Steven and/or Dodo fall onto the electrified floor. Guess who actually slips and falls.
- Monster Clown
- N-Word Privileges: Used in "The Hall of Dolls". It was Fair for Its Day. This changed as the Civil Rights Movement progressed and cast a negative light on that word in general as vulgar.
- Our Lawyers Advised This Trope: Cyril is dressed like Billy Bunter and has an line (adlibbed) where he says that his friends call him "Billy". After the broadcast of "The Dancing Floor", the estate of Frank Richards complained that Billy Bunter was being portrayed as evil and a disclaimer was aired after "The Final Test" to state that Cyril was merely imitating Bunter.
- Psychopathic Manchild
- Towers of Hanoi
- Who Wants to Live Forever?: The Toymaker is driven to his villainy by the sheer boredom of immortality. He doesn't even mind the Doctor destroying his realm because at least rebuilding it will mean he has something to do.
- Yellow Peril: A debateable example: the Toymaker wears traditional Chinese clothing (with no in-story explanation or discussion), and the word "Celestial" was occasionally used in British culture as a mild derogatory term for Chinese people and culture, but there's no attempt to give the character a "Chinese" facial appearance or accent.