Season 1 26 Episodes
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Episode 1 Struggle at the South Pole
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Episode 2 Battle at the Bottom of the World
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Episode 3 Sting of the Spider
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Episode 4 Return of the Spider
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Episode 5 Spider's Revenge
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Episode 6 The Secret Valley
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Episode 7 The Diamond Smugglers
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Episode 8 The Dangerous Doctor Diamond
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Episode 9 Force of Terror
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Episode 10 World in Danger
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Episode 11 Badge of Danger
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Episode 12 The Smoke Robots
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Episode 13 The Freeze Ray
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Episode 14 The Magic Multiplier
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Episode 15 The Submarine Base
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Episode 16 Treasure Mountain
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Episode 17 The Mystery Missile
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Episode 18 The Giant Cobra
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Episode 19 The Great Hunt
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Episode 20 The Deadly Web
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Episode 21 The Atomic Flame
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Episode 22 The Incredible Speed Machine
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Episode 23 The Monster Magnet
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Episode 24 Target: Jupiter
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Episode 25 Trap At 20 Fathoms
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Episode 26 Monster from the Deep
Season 2 26 Episodes
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Episode 1 Will The Real Gigantor Stand Up?
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Episode 2 10,000 Gigantors
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Episode 3 The Plot to Seize Gigantor
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Episode 4 The Space Submarine
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Episode 5 Gigantor Who
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Episode 6 The Robot Olympics
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Episode 7 The Crossbones Caper
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Episode 8 Ransom at Point X
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Episode 9 The Gypsy Spaceship
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Episode 10 The Space Cats
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Episode 11 Return of Magnaman
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Episode 12 Vanishing Mountain
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Episode 13 The Insect Monsters
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Episode 14 The City Smashers
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Episode 15 The Robot Firebird
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Episode 16 Magnaman From Outer Space
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Episode 17 The Robot Albatross
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Episode 18 The Battle of the Giant Robots
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Episode 19 The Deadly Sting Rays
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Episode 20 Gigantor and the Desert Fire
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Episode 21 The Atomic Whale
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Episode 22 The Secret Formula Robbery
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Episode 23 The Evil Robot Brain
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Episode 24 The Devil Gantry
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Episode 25 The Robot Arsenal
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Episode 26 Dangerous Dinosaurs