There is more than one artist with this name:
1) VIPER is one of the pioneers of heavy metal bands in Brazil. Founded in 1985, recorded their first demo, “The Killera Sword”, 2 years later, “Soldiers of Sunrise”.
“Theatre of Fate”was their second album, in 1992 “Evolution” was released. In the next year, “Maniacs in Japan" was released and was recorded live in Japan. Roadrunner Records released their next album, “Coma Rage”, in 1995.