ArcCannon (アークキャノン Ākukyanon) is an enemy from Mega Man Zero 4 that appears attached to the floors, walls and ceilings from the first mission in the wilderness, Area Zero, Artificial Sun (Sol Titanion's stage), Underground Forest (Noble Mandrago's stage), Particle Beam (Heat Genblem's stage), and Ragnarok. Its cannon part can turn to aim at Zero. Its parts can be used to make the Head Chips A-Recover2 and A-Recover3.

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