When Karl Ziktor's attempt to legally cut down an old forest failed due to the discovery of an endangered insect, Chainbot is assigned to destroy it completely. He is stopped by Ryan, though his destruction isn't shown on screen. After the self-destruction of Grimlord's dungeon, Chainbot survives as a mere head. His head attacks Ryan and is soon destroyed afterward, inflicting pain on the weakened Ryan as well. Chainbot fits the category of Decimator's army.
- In footage from the original Japanese series, Chainbot is destroyed by Metalder's Lightning Hand Command and splits in half afterward, the same as Horrorbot.