Disk Vol.9 "Strange Blue"
From Ephinea PSO Wiki
"Strange Blue" was created by mabuse 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. "Strange Blue" was the first runner-up in the contest. mabuse's submission described the song as, "Although the world of PSO never changes, each visit is a new experience. With this song, I hoped to convey that you're not alone.".
Availability
Enemy Drops
All music disks can be obtained by killing any enemy.