Rival is the main antagonist and final boss of Star Ocean: Blue Sphere.


Rival and Dias

Dias confronts Rival

Rival caused Ernest Raviede, Precis F. Neumann and Claude C. Kenny's ships to crash on the planet Edifice. She had lost control of herself and had been in the process of destroying the world. In an effort to stop herself she caused the ships to crash knowing the heroes would try to protect the planet.


Main article: Rival (Boss)

At different stages of the final battle Rival assumes the form of Lenneth Valkyrie and even retains the technique Nibelung Valesti which can easily destroy the entire party if they are close enough together.

Blue Sphere Logo
Translations - Artists - Voice Actors
Playable Characters Claude C. Kenny - Rena Lanford - Celine Jules - Dias Flac - Ashton Anchors - Precis F. Neumann - Opera Vectra - Bowman Jeane - Leon D.S. Gehste - Ernest Raviede - Noel Chandler - Chisato Madison
Non-Playable Characters Rival - Mother Edifice
Earth - Expel - Edifice - Tetragenesis
Earthling - Edifian - Fellpool - Muah - Nedian - Tetrageniot - Celestial Being - Tria
Grand Knott
Field Action - Item Creation (Specialty - Super Specialty - Talents) - Private Action (AR) - Guard - Special Arts - Symbology
Star Ocean: Blue Sphere Arrange & Sound Trax - "Hand to Hand" - "Like the River Styx" - "Star Ocean Forever"
Enemies - Items - Locations

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