Cyborg 009: The Cyborg Soldier

Tears of Steel (1x5)

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A new assassin, 0011, appears. He is a Cyborg but looks like a robot with a shape of a giant spider. First it looks like he should win but when 004 and 002 reinforce the Cyborg ranks they almost kill him, but suddenly he says, ""I want to recover my own body. I can never meet my family or embrace my daughter again with such a monstrous body."" 004 hesitates to fight at his word, over wrapping himself. 0011 takes advantage of this, spreads some kind of liquid, and withdraws. After a while, something wrong happens to the Cyborgs after the fight. Turns out that the liquid 0011 spread is poisonous. The team is paralyzed and falls down. At the sight of them, the remodeled 0011 comes back to attack them.