Binding of Isaac: Rebirth Wiki
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* +2.0 Tear height.
 
* +2.0 Tear height.
 
** The increased tear height and decreased range results in overall slightly less firing distance.
 
** The increased tear height and decreased range results in overall slightly less firing distance.
* Occasionally, firing tears will cause Isaac to charge an attack with his head pulsating with a red hue. After the attack has charged up, the fire button can be released to fire a kidney stone that deals extra damage while piercing enemies and walls, and to fire a barrage of tears afterwards.
+
* Occasionally, firing tears will cause Isaac to charge an attack with his head pulsating with a red color. After the attack has charged up, the fire button can be released to fire a kidney stone that deals extra damage while piercing enemies and walls, and to fire a barrage of tears afterwards.
 
** This effect occurs approximately every 25 seconds.
 
** This effect occurs approximately every 25 seconds.
 
** Permanently grants -1 [[Tear Delay|tear delay]] after firing the barrage for the first time.
 
** Permanently grants -1 [[Tear Delay|tear delay]] after firing the barrage for the first time.

Revision as of 10:29, 12 August 2017

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Kidney Stone is an unlockable passive item added in Afterbirth.

Effects

  • -0.2 Speed Down.
  • -15 Range Down.
  • +2.0 Tear height.
    • The increased tear height and decreased range results in overall slightly less firing distance.
  • Occasionally, firing tears will cause Isaac to charge an attack with his head pulsating with a red color. After the attack has charged up, the fire button can be released to fire a kidney stone that deals extra damage while piercing enemies and walls, and to fire a barrage of tears afterwards.
    • This effect occurs approximately every 25 seconds.
    • Permanently grants -1 tear delay after firing the barrage for the first time.
    • Isaac won't be able to fire tears normally until the kidney stone has been fired.
    • The kidney stone has approximately twice the range of normal tears.
    • The tears fired afterwards are a bit inaccurate and can be fired slightly to either side.
  • When Isaac has half a heart left, the urine that appears underneath Isaac upon entering rooms will be changed to red.

Strategy

  • Activating this item before entering a difficult room, like a boss room, can allow you to deal a lot of damage right away. To do this, simply hold the attack button until you stop shooting tears.

Notes

  • Tints tears red. This is only a cosmetic change.
  • (except in Rebirth)Collectible Incubus iconIncubus will still fire tears normally while retaining the barrage effect, making this a good item for Lilith.

Interactions

  • Collectible Brimstone iconBrimstone: No effect. Speed down still applies. Range down applies to Azazel's Brimstone, making it difficult to use at base range.
  • (except in Rebirth)Collectible Explosivo iconExplosivo: The Kidney Stone has a chance to be an exploding tear.
  • Collectible Ipecac iconIpecac: Charges and fires a barrage of Ipecac shots.
  • Collectible The Ludovico Technique iconThe Ludovico Technique: Overrides Kidney Stone. Tear becomes red (cosmetic change).
  • (except in Rebirth)Collectible Marked iconMarked: Occasionally, Isaac will stop automatically firing, and an attack key must be held to release the kidney stone and continue firing.
  • Collectible Mom's Knife iconMom's Knife: Overrides Kidney Stone.
  • Collectible Monstro's Lung iconMonstro's Lung: Overrides Kidney Stone

In-game Footage

Seeds

Template:PlatPC ZX84 DLBX (First floor treasure room) (Both modes)

Trivia

  • This item is a reference to the kidney stone Matt Kap had removed in 2015, hence "Matt's kidney stone"

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