Continuity mistake: When Kochanski is in bed at the start of the episode, she is wearing stud ear rings. When she gets up to go to the kitchen area, they are now hoops. (00:02:20 - 00:03:50)
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Continuity mistake: When the ducts are being backwashed, Lister's dreadlocks are on his right shoulder. But when the shot changes and he says "I hate this. I really hate this.", his locks are on his left shoulder. Then the shot changes again and they're back on his right shoulder. (00:23:53)
Continuity mistake: When the Cat picks up the golf clubs, his hair is sitting on his left shoulder. In the next shot it is behind his back. (00:10:40)
Suggested correction: His hair moved to his left shoulder when he turned his head and picked up the clubs, but you can see his hair go back behind him when he straightens his head.
Audio problem: During the munchkin song, near The End, one of the lines of the song is "then he just might come round for dinner" - however Rimmer mouths "he might just come round for dinner" instead - swapping the words "might" and "just" (00:26:00)
Visible crew/equipment: When Lister, the Cat and Kochanski arrive in the game and start walking towards the camera, a boom mic bobs briefly into the shot. (00:03:55)
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Revealing mistake: When Kryten's head explodes, you can tell the head is a dummy. (00:08:05)