狂怒！#704

Berserk! is an unlockable activated item added in The Binding of Isaac: Repentance.

• This item is the active item equivalent of Tainted Samson's passive ability, with the only differences being that the player can choose to activate this, and this doesn't charge upon taking damage.
• The item's name, description, and effects are likely a reference to the Berserk power-up from the Doom franchise, which forces the player to use powered-up melee attacks in some games.
• The phrase 'rip and tear' is frequently used throughout the Doom franchise, and was first used in the 1996 Doom comic after protagonist Doomguy picked up the Berserk power-up.
• In addition, Isaac's inability to die during the effect could be a reference to the common joke of Doomguy being "literally too angry to die", as well as his indestructible nature in the later series lore.
• This item may also be a reference to the character Chicken from Nuclear Throne who, unlike other characters in the game, wields a katana and, upon losing all HP, instead of immediately dying, her head gets cut off and she can restore health in a short amount of time to stay alive before dying for good.
• This item may also be a reference to the "Rage Beyond Death" ability with similar effects that Barbarians can gain in 5th edition of Dungeons & Dragons, as the original Isaac characters were modeled after character classes from the game.
• The jawbone Isaac uses is a Donkey's jawbone, which is a reference to a passage from the Book of Judges in which Samson kills one thousand Philistines using only the jawbone of a donkey.
• It may also be a reference to the item Donkey's Jawbone from Antibirth that didn't make the cut for Repentance.
• This event is also referred to by the pickup message for the Soul of Samson — "Slay a thousand".
• This item's special synergy with Suplex! was inspired by a bug in Repentance's initial release where any enemy (including final bosses like Hush and Delirium) that Suplex! was used on as Berserk!'s timer was ending would be instantly killed.
• If Isaac dies because the Berserk state ended while he has no hearts, Isaac's Last Will will show Isaac's face in the "I died to this thing" part. Similarly to death caused by self damage from Razor Blade. Tainted Samson Unlocks Delirium Unlocks The Binding of Isaac: Rebirth
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