The Gaia Battler is an boss enemy from Grandia. Gaia Battlers are fought four times over the course of the game with the first being at the Tower of Doom. These beings appear to grow from Gaia itself and is a way for Gaia to directly fight the party.
As well as the main core of the Gaia Battler, it's two arms will act separately in battle.
- Main article: Gaia Battler (First Encounter)
When Justin, Feena, Rapp and Milda are researching the Tower of Doom they are attacked by the first of four Gaia Battlers. Nana, Saki and Mio are researching some work for General Baal but unbeknownst to them, it turns out to be a part of Gaia which breaks free and unleashes the Gaia Battler.
- Main article: Gaia Battler (Second Encounter)
The second of the four Gaia Battlers is faced when the party visit the Abandoned Laine Village, it is found in the Warp Spaces Core. Once again your party consists of Justin, Feena, Rapp and Milda and the strategy for this battle is similar to the first.
- Main article: Gaia Battler (Third Encounter)
The penultimate of the four Gaia Battlers is fought in Zil Padon after the attack by Gaia. Once again it is stronger than the previous versions and this time your party consists of Justin, Feena, Rapp and Liete.
- Main article: Gaia Battler (Final Encounter)