Iron Mask


 * Not to be confused with the Steel Mask, an item from .

are recurring NaN Objects in. NaN Iron Masks go unnamed in, , , , , and.

NaN Helmasaurs wear NaN Iron Masks in. Their fronts are invulnerable to TMC:'s weapons, and the NaN Iron Masks can only be removed with the TMC:. Once they have been removed, NaN Helmasaurs are vulnerable, and move much more slowly.