Dokuroken Gundam, also known as Gundam, is a martial artist mastering the Venom Wolf Fist (Dokuroken) style and an instructor at its dojo. He initially challenges Victory Ramenman to a duel, suffering swift defeat. Attempting a surprise sword attack costs him his left arm. Seeking vengeance, he immerses his remaining right arm in poison for days, transforming it into the lethal "Dokushu" (Poison Hand). In their rematch, Gundam nearly kills Ramenman with a single Dokushu touch. Ramenman recovers and defeats him using the Daketsu Santen Kuzushi technique. Collapsing, Gundam accidentally touches himself with the Dokushu, resulting in his death. He later returns to life under unexplained circumstances, becoming a key Ramenman ally. His left arm regenerates without explanation in Volume 5. Gundam employs techniques including Crimson Thousand Li Hawk (Kurenai Senri Taka), Vile Poisonous Thousand Li Hawk (Kyōdoku Senri Taka), Chain Rotation (Rensa Kaiten), Head Scissors, and Swallow Migration Technique (Raien Buttai Idō Jutsu). Alongside Ramenman in tag-team battles, he uses collaborative techniques like Two-Sided Last Stand (Ryōmen Haisui) and White Tiger Crimson Hawk Fist (Byakko Benidaka Ken). His combat history includes victories against Mercury Charsiuman, Wang Huangdi's subordinates, and Gyokuo's subordinates using the Poison Hand. He participates in successful tag-team fights against opponents like Tiaolong and Huangying, though he suffers solo defeats against Huangying and Tiaolong.