Icon-bioman.png This article is about a/an giant monster in Choudenshi Bioman.

Grotescanth (グロテスカンス Gurotesukansu, 19 & 20) is a Mecha-Gigan of Neo Empire Gear, developed and utilized by Prince


Grotes Canth's greatest strength are its abilities to rebuild itself after its defeat and its energy draining "intestines" within its body that were originally developed by Mason but used by Prince to constrict and attack Bio Robo after its been opened up. It also possesses a tractor beam in the torso and can fire electric bolts from the eye.


Grotes Canth is a secret Mecha-Gigan created and developed by Doctor Man's "son" Prince, created to assist him but using other of Gear's developments such as Mason's attack coils (initially used to suction gasoline from a tanker) for its usage. During an initial showdown with Prince, he summons the Mecha Gigan; Bioman appears to have an easy time dealing with it using Dashing Beam, but end up opening up and releasing the intestines, which attack it and constrict movement. Prince makes the battle all the more difficult by entering into the Mecha-Gigan to pilot it, making the team worry due to the belief that he was human. Eventually, the team use Super Maser to remove the intestines from Grotes Canth before it gets away; but Prince is forced to attack civilians until Bio Robo returns them to his creation.

By the time Bioman fight Grotes Canth again, they realize finally that Prince was a Mecha-Human and thus had an easier time fighting and attacking. Attacking the control module during the final showdown, Bio Robo defeats both Prince and Grotes Canth with ease, defeating him with Bio Robo's Weight Attack.

Powers and Abilities


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Behind the Scenes


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Concept Art


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Icon-bioman.png Choudenshi Bioman
Shirou Gou - Shingo Takasugi - Ryuuta Nanbara - Mika Koizumi - Jun Yabuki - Hikaru Katsuragi
Techno Brace - Bio Swords - Bio Arrow - Bio Machines - Bio Turbo
Bio Peace Union:
Peebo - Joy
Other Allies:
Shuichi Kageyama - Professor Shibata - Shota Yamamori - Minor Characters - Turborangers - Gokaigers
Mecha and Robo
BioDragon - Biojet 1 - Biojet 2
Bio Robo
Neo Empire Gear
Doctor Man - Mason - Farrah - Farrah Cat - Monster - Mechaclones (Mechaclone No. 1)
Beastnoids: Zyuoh - Messerjū - Psygorn - Mettzler - Aquaiger
Mecha-Gigants: Kabuto Canth - Devil Canth - Gorilla Canth - Beetle Canth - Mummy Canth - Rhino Canth - Sea Anemone Canth - Twin Canth (Twin Dolls) - Chameleon Canth - Samurai Canth - Hammer Canth - Shark Canth - Anchor Canth (Neo Intellect Brain) - Frog Canth - Neptune Canth - Turtle Canth - Haniwa Canth - Grotes Canth (Prince) - Camera Canth - Scarab Canth - Pirahna Canth - Poison Moth Canth - Crab Canth - Ghost Canth - Spider Canth - Octopus Canth - Jellyfish Canth - Mantis Canth
Neo Mecha-Gigants: Metal Megas - Axe Megas - Skull Megas - Wrestler Megas - Magne Megas (Magne Warrior) - Cannon Megas - Battle Megas - Sonic Megas - Crush Megas - Amazon Megas - Thunder Megas - Satan Megas (Miki) - Baroque Megas - Rugger Megas - Lens Megas - Super Megas - King Megas
Anti-Bio Union
Bio Hunter Silva - Balzion
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