Ultraman Wiki

The Battlenizer (バトルナイザー Batorunaizā) is a device used by Reionics, such as Rei and Kate, that allows its wielder to summon a monster through a system called MonsLoad (モンスロード Monsurōdo). The user is able to command the monster until it is damaged too much, in which case it will have to be called back. This has the side effect of hurting the user as well.


The regular Battlenizer used by Reionics, they can store up to three monsters at a time.

"Battlenizer! Monsload!"

―Activation announcement

Neo Battlenizer (ネオバトルナイザー Neo Batoru Naizā) is an evolved Battlenizer used by Grande and Rei. It functions very much the same as the regular Battlenizer but it can only be controlled by a powerful Reionics and in turn cause their monsters to grow in strength.

Main article: Giga Battlenizer

Originally Ultraman Belial's personal Battlenizer, given to him by Alien Reiblood. Belial used it to control 100 monsters and attack the Land of Light, an event that became known as the Revolt of Belial.

List of Users


  • All users of the Battlenizers have been Reionics. How they obtained them is unknown but they may simply appear due to their Reiblood genes.
  • In episode one of Ultra Galaxy NEO, it is shown that a Battlenizer is a mix of technology and organic components. The second form of the Battlenizer is a metamorphosis brought about by Rei's growth in power. This would mean that they are dependent on the owner Reionics' energies as shown by the Battlenizers of defeated Reionics are never shown to be unusable.