Binding of Isaac: Rebirth Wiki
Onan's   Streak
Character Judas appearance.png
Full red heart
Table dividing line 1.png
Challenge Number
Available Rooms
Item Pool Treasure Room.png: yes          Item Pool Shop.png: yes
Boss Isaac portrait.png
Kidney Stone Kidney Stone
Unlock Method

Onan's Streak Added in Afterbirth / Removed in Repentance Defeat Mom Mom
Added in Repentance Unlock Judas Judas and It Lives It Lives.

Added in Afterbirth

Onan's Streak is challenge #29. Start as Judas Judas with The Book of Belial The Book of Belial,Chocolate Milk Chocolate Milk and a damage bonus of +2 giving him a starting damage of 8.71. Missing any shots causes Judas to take damage. Treasure rooms are present in this challenge. The goal is to defeat Isaac Isaac.


Not hitting anything with tears causes Judas to take damage. This makes accuracy very important as missing a few shots can deplete his health very quickly. Because of this, fast-moving enemies or enemies with erratic movement patterns can prove to be very difficult in this challenge.


  • Hitting any type of poop, fire, bomb, eternal fly, white champion enemy, spike block, or Stone Grimace Stone Grimace does not count as a miss.
    • Hitting Red Poop with a spectral tear counts as a miss.
  • If firing a tear and leaving the room before it touches the wall or floor, Judas will not take any damage. This is only useful if he shoots accidentally.
  • For enemies that move erratically, try and get close enough so they'll close in. Once they approach, move out of the way and shoot them once they stop.

Good Items[]

  • Toxic Shock Toxic Shock can help Judas to bypass most of the rooms without the need to fire tears.
  • Obtaining Fate's Reward Fate's Reward and charging your tears, but never firing, allows you to fire tears without fear of self-damage.
  • Items that negate damage are extremely useful. Holy Mantle Holy Mantle, in particular, nullifies 1 hit of damage per room, allowing more room for error.
  • Taking Technology 2 Technology 2 and never releasing the fire keys, even across floors, allows Judas to engage enemies without firing any tears.
  • Taking Rubber Cement Rubber Cement is recommended, as hitting a wall won't deal damage to him, and hitting the ground won't either if an enemy is hit first.
    • Enemies include stone grimaces, unkillable enemies, fireplaces, poop, and bombs.

XboxOne Poop is not considered an enemy if it is the first object hit.

  • Proptosis Proptosis allows Judas' shots to miss without dealing damage as long as they don't hit a wall or object.
  • Isaac's Tears Isaac's Tears do not count as a hit/miss, and it maintains Chocolate Milk's charged damage bonus when activated, making it a safe combat alternative.
  • Shots fired by the familiar with Incubus Incubus will damage the player . When coupled with a recharging or zero cooldown item such as Magic Fingers Magic Fingers, it will effectively give Judas a safe auto-attack. The Incubus's safe-to-miss shot will fire when the item is used, without having to fire Judas' shot.
  • Dead Eye Dead Eye benefits from this challenge, since the player will be focused on not missing. This can allow for long streaks at high damage.
  • Tractor Beam Tractor Beam keeps tears in a straight line in front, which is very helpful for hitting many later enemies.
  • Ipecac Ipecac's explosion radius make it much easier to hit enemies, though like in any other situation with the item, caution should be exercised.
  • Spectral tears effect might help, since going through a rock doesn't count as missing.
  • Pupula Duplex Pupula Duplex is helpful, since it gives Judas' tears a bigger hitbox, in addition to spectral tears. Flat Worm Flat Worm also gives a bigger hitbox.
  • Similarly, Polyphemus Polyphemus gives tears a bigger hitbox and allows Judas to hit many enemies with each tear. Any Polyphemus tear that continues after hitting an enemy won't damage Judas if it lands untouched afterward.
    • Continuum Continuum will help, giving spectral tears and allowing tears to go through the walls to get back on the other side.
  • Piercing shots could be useful since the shots won't damage if at least one enemy is hit, and multiple can be hit with one shot.
    • Death's Touch Death's Touch is especially useful because it increases the size of tears significantly, making it harder to miss, in addition to piercing and higher damage.
    • Added in Afterbirth †Eye of Belial Eye of Belial does not damage Judas as long as he hits at least one enemy, making the item very useful.
  • Brimstone Brimstone, Epic Fetus Epic Fetus, Mom's Knife Mom's Knife, Tech X Tech X and Added in RepentanceSpirit Sword Spirit Sword won't damage Judas for missing enemies.
  • Mom's Wig Mom's Wig will keep spawning friendly spiders until there's 5 of them when charging the shot.
    • The same goes for the Guppy transformation or The Mulligan The Mulligan.
      • Be careful, however, as there is the possibility of friendly spiders/flies killing a target before Judas' fired tear connects.
    • The same goes for Number Two Number Two and Bob's Brain Bob's Brain, as spawning bombs under Judas while charging and the explosions from the brain, respectively, can easily end the run.
  • One well-timed charge of the White Pony White Pony could be enough to insta-kill It Lives It Lives and seriously damage Isaac Isaac.
  • Tears that have passed through an Added in Afterbirth †Angelic Prism Angelic Prism familiar do not deal damage to Judas even if all the split tears miss.
  • If you find Butter Bean Butter Bean, do not leave behind bomb-giving items such as Pyro Pyro. Placing bombs and pushing them towards the enemy with a fart is a viable alternative for shooting tears.
  • Watch out when using unidentified pills, as R U a Wizard? can be disastrous to the run if not extremely careful and/or lucky. Check the shops for a PHD PHD, just in case.
  • The Wafer The Wafer makes the challenge much easier in Womb Womb and beyond, as it halves the damage dealt from missing tears.
  • Any item that helps refill red heart containers such as the Yum Heart Yum Heart, Maggy's Bow Maggy's Bow, and The Jar The Jar will be helpful in case misses are frequent.
  • Items that grant homing tears, such as Spoon Bender Spoon Bender and Sacred Heart Sacred Heart, can make accuracy a lot easier. Although Godhead Godhead is a bad item for this challenge (see below).
  • Added in RepentanceBrain Worm Brain Worm can redirect misfires back into enemies, thus being a great mistake preventer.
  • A very good strategy is to combine many different followers such as Mongo Baby Mongo Baby, Rotten Baby Rotten Baby or Isaac's Head Isaac's Head, and only using the tears from the followers as Judas' main source of damage. This is complimented by items such as Daddy Longlegs Daddy Longlegs as Judas does not have to fire tears to deal damage with these followers.
    • Because of this, BFFS! BFFS! is a very useful item.
  • The Boomerang The Boomerang will not cause damage if it misses, making it an effective alternative to tears given Judas' high damage.
  • The Ludovico Technique The Ludovico Technique is an extremely valuable item since the tear never lands, thus Judas can't be hurt if it misses.
  • Added in Afterbirth †Lachryphagy Lachryphagy removes the effect of Judas getting damaged when missing shots, but only when the tear explodes.
  • Added in Afterbirth †Haemolacria Haemolacria can be powerful, as only the initial tear needs to hit an enemy; the burst tears do not count, unlike for other scatter shot items.
  • Added in Afterbirth †Shard of Glass Shard of Glass as the blood shots do not deal damage to you if they miss, this item can be exceptionally strong for this challenge.
  • Added in RepentanceThe Intruder The Intruder's quad shot does not count as hits/misses, and taking damage, including damage from a missed shot, summons the more effective active familiar.
  • Added in RepentanceStitches Stitches can be used to dodge damage from missed shots if timed correctly. Its teleport can also be used as damage so you don't have to risk missing shots.
  • Added in Repentance120 Volt 120 Volt removes the need to fire tears at enemies in normal rooms, allowing Judas to destroy crowds of enemies just by walking by them.
  • Added in RepentanceC Section C Section will not harm Judas as long as the tear hits an enemy before landing, making it a very powerful item for this challenge.
  • Glass Cannon Glass Cannon is recommended since cannon ball tears need to hit only one enemy in order to not deal damage to the player. It also shoots bigger tears than normally to due the high starting damage.
  • Added in RepentanceSaturnus Saturnus is recommended since the tears created by it don't count as a miss if they fall to the floor. However, enemy tears that get in the ring do count as misses when they fall.
  • Rubber Cement Rubber Cement combined with Added in Afterbirth †Lachryphagy Lachryphagy makes it so that Judas can't be damaged by his own tears at all.

Bad Items[]

  • Taking Tammy's Head Tammy's Head or Removed in Repentance Sad Bombs Sad Bombs is not recommended, as they release tears which all count towards hit/miss. Since they release multiple tears at a time, they will almost unavoidably cause tears to hit the ground.
    • Added in Repentance Tears released from Sad Bombs no longer count as misses or hits.
    • Isaac's Tears Isaac's Tears, however, don't.
    • The Tear Detonator Tear Detonator doesn't count either.
  • Unless Judas already has piercing tears, Lost Contact Lost Contact should generally be avoided. While blocking a shot does count as a hit, without piercing, it will also destroy the tear before it can do any damage, making bullet-heavy fights such as Mom's Heart Mom's Heart/ It Lives It Lives and Isaac Isaac extraordinarily difficult.
  • Shots fired by the familiar with Incubus Incubus will damage the player .
  • Taking any item that multiplies the number of tears (e.g. 20/20 20/20, The Inner Eye The Inner Eye, Mutant Spider Mutant Spider, or Monstro's Lung Monstro's Lung is not recommended, as Judas has to hit with every tear to not take damage.
  • Godhead Godhead can be dangerous, as even if the aura kills an enemy, if the shot doesn't hit an enemy or poop, it will count as a miss.
  • When using Maw of the Void Maw of the Void, keep some distance against non-boss enemies. If the ring kills an enemy before the tear hits it, it can cause Judas to miss the shot.
  • Circle of Protection Circle of Protection: Judas can take damage from tears reflected by the ring.
  • Explosivo Explosivo should be avoided. The Explosivo shot doesn't count as hitting the enemy until it blows up. If Judas kills an enemy with the Explosivo shot on them, the tear will fall to the ground and will damage him. Enemies that jump or teleport will also cause Explosivo shots to fall off. If the enemy with an Explosivo shot walks near a wall, the tear will disappear and will cause damage.
    • Added in Repentance Non-exploded Explosivo tears that fall to the ground no longer cause damage. Explosivo is a valuable damage upgrade now.
  • Soy Milk Soy Milk is not recommended, as it prevents charging shots (instead, firing automatically like regular tears). Judas does get a +1 damage increase after the damage reduction but the fast fire rate will make it nearly impossible to stop tears hitting anything other than an enemy.
    • Added in RepentanceAlmond Milk Almond Milk similarly prevents charging shots and adds an unpredictable worm effect
  • Taking The Wiz The Wiz is not recommended, as firing two tears simultaneously will almost certainly cause one tear to miss.
  • Taking My Reflection My Reflection is not recommended, as firing a tear from a long distance causes the tear to reverse back the opposite direction and miss unless there is an enemy behind Judas.
  • Hitting a target while having Cursed Eye Cursed Eye still damages and teleports out of the room.
    • Charging shots before entering a room can kill, since it will fire a big tear followed by 3 little tears, causing damage.
  • 3 Dollar Bill 3 Dollar Bill, Fruit Cake Fruit Cake, and Rainbow Worm Rainbow Worm are not recommended because the changing effects will make it more likely for tears to miss.
  • Libra Libra will balance stats, making Judas' damage much less effective and thus necessitating more shots.
  • Bob's Rotten Head Bob's Rotten Head will harm Judas if it fails to connect, so it is not recommended unless used for combat.
  • Using Added in Afterbirth †Clicker Clicker may take away Chocolate Milk Chocolate Milk, making the run significantly more difficult.
    • However, if using Clicker results in becoming Lilith, the challenge becomes much easier (see Incubus under Good Items).
  • The instant kill effect of Added in Afterbirth †Little Horn Little Horn doesn't count as a hit, and will hurt Judas.
  • Added in Afterbirth †Trisagion Trisagion will cause Judas to take damage on every shot.
  • Added in Afterbirth †Flat Stone Flat Stone will cause Judas to take damage on every tear's skip unless the tear hits an enemy before the next bounce.
  • Added in Afterbirth †Ghost Pepper Ghost Pepper will deal damage to Judas each time the blue flame spawns.
  • Added in RepentanceTwisted Pair Twisted Pair is not recommended, as tears from each familiar count as needing to land or else Judas will take damage.
  • Added in RepentanceUrn of Souls Urn of Souls will harm Judas for each full shot fired.
  • Added in RepentanceRevelation Revelation is likely to kill any basic enemy it hits before the Chocolate Milk shot reaches it, making it difficult to avoid damage when firing charged shots.
  • Added in RepentanceNeptunus Neptunus fires many shots at once, making it very easy for the player to shoot more than needed and cause self damage.
  • Added in RepentanceSpirit Sword Spirit Sword in combination with Added in RepentanceC Section C Section will cause the babies to fire beams in random directions that cause self damage if said beams don't hit an enemy before landing.
  • Added in RepentanceStrawman Strawman is basically useless, as The Keeper's tears will also damage themself (Not Judas), essentially killing themself in a few seconds due to The Keeper firing automatically while Judas charges up Chocolate Milk.



  • The challenge's name, "Onan's Streak," and the challenge conditions are a reference to the biblical character Onan. According to Old Testament law, a man with a married, deceased brother would have the responsibility of producing an heir for his sibling. Onan knew that having this heir would prevent him from legally owning his brother's land, and so spilled his semen onto the ground. God viewed this deed as wicked and killed Onan.
  • Removed in Repentance Despite the challenge starring Judas Judas, the challenge is only unlocked when beating Mom Mom.


Bug Bug! If Judas misses a tear and picks up the trophy while getting hit, he will be frozen in position. Going to the main menu and continuing the run solves this.