Real name: Gelgoog (ゲルググ)

Effective period / Period of releases: 1996

Members: TAKO (6), Kazutomo Maeda, Die (26), OxNxO

Japanese thrash metal band from Osaka, active from October 1991 until February 1998. Gelgoog played thrash / speed metal with a hardcore touch.
They were highly influenced by other "visual" thrash metal bands in a similar style like Rosenfeld, Aion, Vathokija, and Harkenkreuz.
After Gelgoog broke up, their guitarist Tako (6) went on to join vellaDonna which was formed in 1997 by former members of associated thrash metal act Thread Worm.