Syvalion was released in October 1988 in Japan only.
Spin-off of the Darius Series! (at the middle of the Syvalion storyline, the Player helps the people of the planet 'Darius').
The Player character, Syvalion, makes an appearance in "Darius Brust (2009, PSP)".
The producer of this game is Hisayoshi Ogura, a Famous Member of Taito's Sound Team Zuntata. He is known for the musical score at the "Darius
" Series, "The Ninja Warriors
", "Legend of Kage", "Zolid Infitiny". In 2007, he left Taito.
Pony Canyon / Scitron released a limited-edition soundtrack album for this game (Syvalion : G.S.M. Taito 3 - D28B0014) on March 21, 1989.
Zuntata Records released a limited-edition soundtrack album for this game (Zuntata History L'ab-normal 1st - ZTTL-0038) on April 1, 1999.