Disk Vol.12 "Fight inside the Spaceship"
From Ephinea PSO Wiki
"Fight Inside the Spaceship" was created by Takushi Mimura as part of the Japanese Blue Burst servers one year anniversary celebration. Community members were able to submit songs to officially be included in the game. "Fight Inside the Spaceship" received an honorable mention in the contest. Takushi Mimura's submission described the song as, "This action-packed track takes a glimpse into outer space".