Iron Maiden is Millia Rage's second known Instant Kill, replacing Bug Bite starting from Guilty Gear X onwards. Initially, it was Millia's Charge Attack (or Overdrive as they were renamed in later entries) in the original Guilty Gear.
In Guilty Gear X and XX, Millia plunges her hair through the ground. It comes out under and multiple strips of hair let out a golden glow that stabs the opponent. As it stops, two huge twisted hair strands shaped like arrow tips impale the opponent from above while forming an X shape. Finally, the enemy falls to the ground as the hair disappears.
In Guilty Gear Xrd, Millia surrounds her victim with the strips of her hair, making an iron maiden-like dome of golden spikes, and then proceeds to skewer them to death.
- Iron Maiden is the same name as that of a famous English metal band, which in turn, chose its name from the torture device created in the 19th century.
- This is the only attack to have originated as another type of move before becoming an Instant Kill. It also retained the same commands, perhaps even providing the standard for all other Instant Kills to follow.