Protecton (プロテクトン) is a round protection program enemy from Mega Man X4 that appears in the second part of Cyber Peacock's stage, Cyber Space. It only causes damage to the player while moving.

Protecton also appeared as part of Cyber Space's background in Project X Zone 2, as well as obstacles that need to be avoided. They can damage units who stand in the way of them as well as run into them.

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