Hidden Attributes

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Attributes
Health Damage Tears Range Shot Speed Speed Luck

Tear Height[edit | edit source]

Tear height is a hidden attribute that determines how far above the ground tears travel. A greater tear height effectively increases range, and a high enough tear height (around 3) can allow tears to fly over obstacles without spectral tears.

Items that Affect Shot Height[edit | edit source]

Passive Items[edit | edit source]

Name ID Icon Quote Description
Blood Clot 254 Blood Clot DMG + range up Increases damage by 1 and range by 5 for tears fired from the left eye.
Dead Onion 336 Dead Onion Toxic aura tears Grants piercing and spectral tears. Increases tear size (without increasing damage) while greatly reducing range and shot speed.
Godhead 331 Godhead God tears Increases damage and range while reducing tears and shot speed. Grants homing tears and tears gain a damaging halo.
Ipecac 149 Ipecac Explosive shots Replaces tears with explosive and poisoning projectiles fired in an arc from the mouth.
Jesus Juice 197 Jesus Juice Damage + range up Increases Damage and Range.
Magic Mushroom 12 Magic Mushroom All Stats Up! Increases most stats, enlarges Isaac, grants a heart container and restores all health.
Mini Mush 71 Mini Mush Speed + range up Increases Speed and Shot Height and decreases Isaac's size, but lowers Range.
Mom's Contacts 110 Mom's Contacts Freeze effect Adds a chance to shoot petrifying tears, which stop enemies in place and prevent them from moving or attacking. Range up.
Mom's Heels 30 Mom's Heels Range up Increases range.
Mom's Lipstick 31 Mom's Lipstick Range up Increases range and shot height.
Mom's Underwear 29 Mom's Underwear Range up Increases range.
My Reflection 5 My Reflection Boomerang tears Gives Isaac's tears a boomerang effect, and increases range and shot speed.
Number One 6 Number One Tears up +1.5 tears, -17.62 range
Odd Mushroom 121 Odd Mushroom DMG up Grants an empty heart container. Increases damage, range and shot height while reducing speed.
Roid Rage 14 Roid Rage Speed and range up Increases speed by 0.6, range by 5.25, and tear height by 0.5.
Sacred Heart 182 Sacred Heart Homing shots + DMG up Increases damage and range while reducing shot speed and grants homing tears. Grants a Heart Container and replenishes all Red Hearts.
Safety Pin 339 Safety Pin Evil + range + shot speed up Increases range and shot speed, while adding 1 Black Heart.
Synthoil 345 Synthoil DMG up + range Increases damage by 1, range by 5.25, and tear height by 0.5.
The Halo 101 The Halo All stats up Grants one Heart Container, +0.3 Damage, +0.2 Tears, +0.25 Range, +0.3 Speed, and +0.5 Tear Height.
Tiny Planet 233 Tiny Planet Orbiting tears + range up Range up and makes shot tears revolve around Isaac until they drop.
Added in Afterbirth Continuum 369 Continuum Transcendent tears +2.25 range up. +1.5 tear height. Isaac's tears travel through walls and appear out of the opposite wall. Isaac's tears also travel over rocks and objects.
Added in Afterbirth Kidney Stone 440 Kidney Stone Matt's kidney stone Randomly while firing tears, Isaac will stop firing and turn red, where he will charge and release a lot of 'tears' in one go. In the burst of tears is a kidney stone which deals a lot of damage.
Added in Afterbirth Marked 394 Marked Directed tears Isaac will now fire tears automatically directed at a red target on the ground which is controlled by the player. This allows for a full 360-degree tear firing radius. It can be overridden by other tear modifiers such as Mom's Knife or Brimstone.
Added in Afterbirth Mom's Pearls 355 Mom's Pearls Range + luck up +1.25 Range Up. +0.5 Tear Height. +1 Luck Up.
Added in Afterbirth Mr. Dolly 370 Mr. Dolly Range + tears up Tears and Range up. Spawns 3 random types of hearts on the floor when picked up.
Added in Afterbirth Purity 407 Purity Aura stat boost Boosts one of Isaac's stats depending on the color of the aura around him. The aura disappears upon taking damage and reappears with a random color upon entering a new room. Red boosts damage, blue boosts tears, yellow boosts speed, and orange boosts range.
Added in Afterbirth Tractor Beam 397 Tractor Beam Control your tears Increases tears, range, and shot speed. Isaac emits a beam from his face that his tears follow along.
Added in Afterbirth † Compound Fracture 453 Compound Fracture Bone tears! Increases range. Tears turn into bones, which shatter into 1-3 bone shards upon hitting an enemy or obstacle.
Added in Afterbirth † Dark Prince's Crown 442 Dark Prince's Crown Loss is power Increases range, tears, and shot speed when at exactly one red heart.

Trinkets[edit | edit source]

Name ID Icon Quote Description
Added in Afterbirth Lazy Worm 66 Lazy Worm Pft Increases Range by 4 and decreases Shot Speed by .4.
Added in Afterbirth Tape Worm 65 Tape Worm Floooooooooop! Doubles Isaac's range and halves his tear height.
Added in Afterbirth † Ouroboros Worm 96 Ouroboros Worm Foop foop! Tears travel in a large spiral pattern and become spectral, with a small chance to home.

Other[edit | edit source]

  • Added in Afterbirth In co-op, Long Baby will occasionally briefly increase range, shot speed, and tear height. Dark Baby will occasionally briefly increase all stats, including tear height.
  • Azazel starts with -1 tear height, though the stat does not affect his short-range Brimstone.

Knockback[edit | edit source]

Knockback is a mechanic that determines how far an entity is pushed back by a certain force.

There are two kinds of knockback: directional and circular.

Directional Knockback[edit | edit source]

This knockback comes from Tears, most notably Isaac's. The knockback force is determined by the speed and direction of the tear, which itself is determined by Isaac's movement and stats, for example Ring Worm Ring Worm does not increase knockback stat but does affect knockback as the tear's speed hits extremes of very fast and very slow, hitting enemies with the fastest moment of its arc applies significant knockback. (Needs research and confirmation)

Directional knockback affects most enemies, including bosses (except for stationary ones like Pin or Round Worm). Items (both trinkets and pickups) cannot be moved by tears, except for bombs placed by Isaac.

Items that Affect Directional Knockback[edit | edit source]

Passive Items[edit | edit source]

Name ID Icon Quote Description
Pisces 309 Pisces Tears up + knock-back shots -1 Tear Delay, adds knock-back shots and increases tear size.
Added in Afterbirth 8 Inch Nails 359 8 Inch Nails Stick it to 'em! +1.5 Damage Up. Replaces Isaac's tears with nails, which have increased knockback.

Trinkets[edit | edit source]

Name ID Icon Quote Description
Flat Worm 12 Flat Worm Blub blub! Isaac's tears take on an oblong appearance. They also push enemies back.
Added in Afterbirth Blister 77 Blister Bounce back! Increases knockback of tears.

Notes[edit | edit source]

  • Piercing shots from items like Sagittarius Sagittarius or Cupid's Arrow Cupid's Arrow will remove the natural knockback from tears, but direct boosts still apply. Flat Worm Flat Worm increases only natural knockback and is thus nullified.
  • Knockback from tears provides minor crowd control for homing enemies like flies or Gapers, increasing the time it takes them to reach Isaac.
  • Be wary of the natural knockback from tears when trying to dodge charging enemies (like the smaller twin of Gemini, Gurglings, and Leeches): The tears can push them off-track and towards the direction you are planning to escape to.

Circular Knockback[edit | edit source]

This knockback is a little shockwave that's emitted at a certain radius in all directions, most prominently from explosives, like Bombs. Certain farts also create a (non-harmful) knockback. Some enemies, like the Fatty, can fart, and Isaac can also do so with the Butter Bean.

Pickups (including chests) are affected by circular knockback; items, however, are not.

Items that Cause Circular Knockback[edit | edit source]

Activated Items[edit | edit source]

Name ID Icon Quote Description
Butter Bean 294
Butter Bean
3 seconds
Reusable knock-back Isaac farts and pushes back nearby enemies (Added in Afterbirth and projectiles).
The Poop 36
The Poop
1 rooms
Plop! Spawns a pile of poop where the character is standing and knocks nearby monsters back. May yield pickups like regular poop.

Passive Items[edit | edit source]

Name ID Icon Quote Description
Added in Afterbirth Farting Baby 404 Farting Baby It farts! A familiar that follows Isaac and blocks tears. If a tear hits Farting Baby, there is a high chance for it to fart, which will either knockback, poison, or charm all nearby enemies.

Trinkets[edit | edit source]

Name ID Icon Quote Description
Butt Penny 24 Butt Penny Wealth of gas Isaac will fart when he picks up a coin. Coins have a higher chance to drop from poop.
Mysterious Candy 25 Mysterious Candy Uh-oh! Isaac farts or poops at random intervals. Getting hit can also trigger the effect.

Notes[edit | edit source]


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