Berserk Mode

A Berserk Mode is when a person goes in complete rage and they will not be like themselves at all. If a villain threatens or kill there loved ones, family, or friends they will go in a rage mode. When they are in complete transformation they will go in berserk Mode and attack anything in there path. When in berserk Mode they're not like themselves because if a person try to calm down the berserker that berserker will attack that person who is gonna calm him/her down, which could cause a injury or even death to that person

Examples:

 * When Ichigo Kurosaki went to the vizard place he want to learn how to control his hollow powers which leads one of the vizards to fight him but when one of nearly killed Ichigo his hollow form came out and attacked the vizard person and choking her to death. Which leads the other vizards to restrain him and removing his mask.
 * Sayians like Gohan and Goku. Whenever they see the full moon they go completely berserk, in their giant ape forms destroying everything in their paths. The only way is to destroy the moon and they revert back to their human forms, or cut their tails.
 * Vampires they go completely berserk if they are hungry or smell blood.
 * Werewolves are flesh-eating monsters and they will hunt down humans, vampires, and other animals. When they revert back they have no memory what happened to them on the day of the full moon.
 * In Claymore when they go to close on there awaken forms they will not become themselves at all, and become a monster for the rest of their lives until someone kills them by beheading them.
 * In all of Resident Evil games and movies when they get in touch by the virus or put a serum in them they will become a rampaging and powerful monster of all time.
 * Zombies are well known of this they look for non-human infected and tries to devour them or turn them into them.