1) Amok 2) Amuck 3) Berserker 4) Crazy 5) Demoniac 6) Demoniacal 7) Haywire 8) Insane 9) Loco 1) Amok 2) Amuck 3) Beside oneself 4) British thriller novel 5) Completely bonkers 6) Crazed 7) Crazy 8) Dark fantasy anime and manga 9) Demoniac 10) Demoniacal 11) Destructively out of control 12) Foaming at the mouth 13) Frenzied 14) Insane 15) Maniacal 16) Much more than miffed 17) Nuts 18) Out of control 
[manga] Miura premiered a prototype of Berserk in 1988. The first volume of the manga was published on November 26, 1990 by Hakusensha in its Jets Comics collection. In 1992, after the publication of three more volumes, Berserk began serialization in Young Animal. The series was adapted into a twenty-five episode anime series covering the s...
• (n.) Alt. of Berserker
Berserk: Frenzied, enraged. From the Norse berserkr, one of the old Norse warriors who worked themselves into a frenzy.
berserk 1. Behaving in an uncontrolled way as a result of anger or irrational feeling; to go berserk. 2. Extremely excited or enthusiastic about something (informal): 'The crowd went berserk when the movie star finally appeared.' 3. Destructively or frenetically violent: 'The berserk worker started to smash all of the windows.' 4. Mentally or em...
violently or destructively frenzied; wild; crazed; deranged: He suddenly went berserk.
frenzied as if possessed by a demon