Reimon (レイモン, Reimon?) is a blue/red mysterious alien similar to Ultraman. It is Rei's true form/name, and is of a species of alien known as the Reiblood.
- Height: 2m
- Weight: 220 kg
- Human Form: Rei
- Transformation Item: Battle Nizer
- Power:
- Sun Reionic Lash (サンレイオニックラッシュ, San Reionikku Rasshu?)
- Reimium Reviving Ray (レイミアム光線再生, Reimiamu Kōsen Saisei?): Used to free and revive Ultraman.
Read more about this topic: Ultra Galaxy Mega Monster Battle