The Initial Arousal Phase (第１覚醒形態, dai 1 kakusei keitai) involves the Eva's innate powers being unleashed. The eyes, mouth, and any luminescent armor sections glow red; the A.T. Field's defensive capacities increase and it also becomes a potent offensive weapon; the ability to project energy using the eyes develops; and a halo manifests. The pilot's plug depth approaches the "Great Beyond Depth", exceeding a value of 180, and he starts to transform into an energy being at risk of being unable to return to normal.