Thunder Mask
Season 1, Episode 20: Immortal beasts Gataviran
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All Episodes - Season 1
Episode 1
Look! Two-Stage Transformation at Dawn
Episode 2
A boy who puts out devils
Episode 3
The spirit of the fire
Episode 4
Demon frozen operation
Episode 5
Vampire half-fish people's revenge
Episode 6
Tokyo desert Hakaider
Episode 7
Suck on Earth's oil
Episode 8
Eat Jumbo Jet!!
Episode 9
Put a hole in the earth!
Episode 10
Dorotrono! Bones in humans
Episode 11
It's ambush for the devils
Episode 12
Cruel! Thunder mask capital punishment
Episode 13
At the end of the far away galaxy
Episode 14
Breaking down demon animals
Episode 15
It is a steam whistle of death Degon H
Episode 16
A reviving descender
Episode 17
Radio Demon Delegation
Episode 18
The Devil Battery Electric Strikes Back
Episode 19
Thunder mask insanity
Episode 20
Immortal beasts Gataviran
Episode 21
Go for it in the ashes of death!
Episode 22
It is dangerous! Your toy is a monster!
Episode 23
Ghost story! Vampire and fog night
Episode 24
Save the frozen panties!
Episode 25
Great reversal! Ironman No. 13
Episode 26
Farewell, the brave brilliant star