Zero Space

Rei Space (零空間) is the final stage from Mega Man X5, a Cyberspace area that materialized in the real world in point 11F5646 because of the Zero Virus. The Rei Space consists of four stages, each which X and Zero must go through to investigate.

Rei Space Stage 1: Origin
The first Rei Space stage, Origin (起源), is the entrance to the Rei Space. The area protected by lethal lasers. X/Zero need to dodge the lasers or use Dark Hold to pass the area safely.

This stage bears a striking resemblance to Quick Man's stage from Mega Man II, if not being a complete copy of that area.

Enemies:
 * Eagle G
 * Spike Marl
 * Zero Virus

Boss:
 * Shadow Devil



Rei Space Stage 2: Grief
The second Rei Space stage, Grief (哀愁), begins with a vertical area with spikes and enemies and ends in a horizontal area that needs to be climbed by using ropes and Wall Kicks while avoiding the enemies and spikes.

This stage bears a striking resemblance to Sigma's Fortress 1 from the original Mega Man X, if not being a complete copy of that area.

Enemies:
 * Crusher NEO
 * Eagle G
 * Hover Gunner
 * Sniper
 * Walk Shooter
 * Zero Virus

Boss:
 * Rangda Bangda

Rei Space Stage 3: Awakening
The third Rei Space stage, Awakening (覚醒), has several spikes and pifalls across the path. In one small pit, there is a hidden capsule. As X (without armor), Dr. Light gives the Ultimate Armor. As Zero, Dr. Light improves his abilities, changing his color to Black Zero. It is possible to obtain both by dying in the stage and return with the other character.

Enemies:
 * Metall T
 * Hover Gunner
 * Seil Gabyoall

Boss:
 * Zero / Awakened Zero (as X)
 * X (as Zero)

Rei Space Stage 4: Birth
The fourth and last Rei Space stage, Birth (誕生). The stage has spikes in the beginning, a rematch against the eight stages bosses, and a large pit with Appearing Blocks.

Enemies:
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 * Eagle G
 * Hotarion
 * Killer Sphere
 * Spark Gunner
 * Spike Marl
 * TriScan Gold

Boss:
 * Rematches: Mattrex, Dark Dizzy, Izzy Glow, Squid Adler, Duff McWhalen, Grizzly Slash, Axle the Red, The Skiver
 * Sigma