Continuity mistake: On the controls of Dr. Quest's Parapower Ray gun, the oscilloscope has no meters or knobs next to it, but close-ups show the meters and knobs are there.
Continuity mistake: After Bandit pulls the robot's eye from the wreckage of the spaceship, the long wires emanating from the back of the eye disappear and reappear.
Continuity mistake: The bullet hole patterns and number of holes in the condor target change position.
Continuity mistake: The Baron's airplane propeller shaves off the blue part of the tail of Race Bannon's plane and reappears intact several shots later, then is missing again. Race returns the favor to the Baron's plane: the tail of the Baron's plane is intact in some scenes, shaved off in others.
Continuity mistake: The book Jonny reads under the palm tree shows it being opened and flat from the rear view, but the front shows the right half of the book is lower than the left half.
Audio problem: When Trina tells Race and Dr. Quest her husband is to be a gift to the Po-Ho god "Ranio", Quest's mouth says "Ranio?" but with Race's voice.
Continuity mistake: The fuel cans in Race's boat change color: one is red, the other lavender, then both become red.
Audio problem: When Jonny and Hadji are in the boat waiting for Race' return, Bandit starts growling and barking, but Bandit is not grimacing or moving his mouth as he growls and barks.
Continuity mistake: The microphone next to Dr Zin's monitor disappear and reappears.
Continuity mistake: When Dr. Quest and Race Bannon find the guard unconscious, his helmet is next to his head, but later shots show his helmet has disappeared.
Plot hole: Dr. Quest is speaking through the Dragonfly's speakers to the Po-Hos as they fly over the jungle, telling them he is their air God and is angry the tribe has taken hostages. Quest could have told the Po-Hos to just release the hostages, rather than putting himself in danger later on by getting captured.
Other mistake: It is established that Drs. Quest and Hartman speak the Po-Ho's language, but when they are captured, Dr. Hartman is translating to Dr. Quest how the Po-Hos are going to torture them.
Attack of the Tree People - S1-E19
Other mistake: The captain of the ship that picks up Race and Dr. Quest talks with a German (and sometimes French) accent but the commands he gives are in Dutch, like "Volle kracht vooruit" and "Pik de drenkelingen op" (the Dutch accent is very different from the German accent, as is Dutch from German).
