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Boss Satan name.png
Boss versus screen image
Table dividing line 1.png
In-game appearance
Table dividing line 2.png
Stage Sheol icon.png
Stage The Void icon.png
Table dividing line 3.png
Final Boss Chest

Satan is the boss of Sheol Sheol, which can be accessed by either killing Mom's Heart 11 times and proceeding to kill It Lives, or entering a Devil Room after killing Mom's Heart and walking into the trapdoor that appears. It is also accessible by using We Need to Go Deeper! We Need to Go Deeper!, Ehwaz Ehwaz or Added in Afterbirth †Mom's Shovel Mom's Shovel. He is the final boss of Ending 12.

Behavior[edit | edit source]

The battle against Satan has three distinct phases.

First phase[edit | edit source]

The first phase starts with a slight delay after Isaac enters the room:
Satan will shout, and roughly two seconds after Satan's voice dies out, The Fallen will spawn at the center, with two Kamikaze Leeches to both of his sides.
Once The Fallen is dead, the second wave starts.

It is advisable to place a bomb at the center shortly before the spawn: When timed right, the explosion will kill both Leeches and the first phase of The Fallen immediately. The best way to do this is by placing the bomb shortly after the sound effect that plays upon entering the room ends.

Second phase[edit | edit source]

Once this is done, Satan will appear/spawn from the statue at the top of the screen in his first form. He stays at the top of the screen, hence bombs are very effective against him. However, if he moves to the side, the bomb will be ineffective.

Patterns[edit | edit source]

  • He will frequently shoot waves of projectiles from both his hands towards the left and right side of the room. The safest spot is directly in front of Satan, but beware of his Brimstone Brimstone attack.
  • He can shoot two slightly homing Brimstone Brimstone lasers (like The Adversary) from his hands when Isaac is on the right or the left in front of Satan. The safe spot, in this case, is the center or either corner of the room.
  • When Isaac is at the center of the room, Satan will start an audible charge and emit one thick straight Brimstone Brimstone beam through his mouth.
  • Two scattering shots of 5 and 4 projectiles from Satan's mouth, similar to Gurdy's birthing attack, except aimed directly at Isaac. This attack is virtually unpredictable and thus is very difficult to avoid.

Once he gets to a third of his life, he enters in his second form, the third phase.

Third phase[edit | edit source]

He attacks by stomping Isaac with both of his feet, which come down considerably quicker than Mom's foot. However, the stomps will come down in a constant rhythm: His second hoof follows shortly after the first one, and he redraws each after they have been on screen for about one second (like Mom's foot). Then he will stomp again about two seconds after the second foot has been redrawn.

Up to two Kamikaze Leeches will also spawn during this time. If one of them dies, another one will respawn shortly afterwards.
This can be used to your advantage to have Satan stomp on one of them for considerable damage. However, be very careful not to run into them while evading the feet, which often turns out to be the hardest part of the fight due to their charge attack, their tendency to be obstructed by the legs, as well as the random location new leeches can unexpectedly respawn.

Once Satan dies, the Kamikaze Leeches spawned by him will automatically explode and die as well.

Gallery[edit | edit source]

Unlockable Achievements[edit | edit source]

Also, beating Satan with a particular character for the first time will unlock the inverted cross Completion Mark on that character's post-it note.

Notes[edit | edit source]

  • Every time Satan is defeated, the current savefile's image changes until The Negative The Negative is unlocked.
  • Using the The Bible The Bible on Satan will instantly kill Isaac, even if Isaac has the The Wafer The Wafer.
  • On the third wave, Pyromaniac Pyromaniac and/or Added in AfterbirthHost Hat Host Hat will be extremely useful, as Kamikaze Leeches and stomping (which is considered as an explosion) will not hurt Isaac.
  • Unlike in the original Binding of Isaac, Satan's feet don't cause damage on contact for the short time they rest on the ground after a stomp, providing a window of opportunity to deal significant damage with orbitals such as Sacrificial Dagger Sacrificial Dagger, or activate other contact effects like Midas' Touch Midas' Touch.

Trivia[edit | edit source]

  • Satan appeared in the Halloween Update for the original The Binding of Isaac.
  • Satan's pose as a statue and during the VS Screen is a nod to the demon Baphomet, who is usually portrayed in a similar pose.
  • The demonic speech Satan shouts at the start of his first phase reuses one of Mom's voice lines, shouting "Isaac!" in reverse with heavy distortion.
  • The music that plays during this battle is titled Hericide. He​ricide is the act of murdering one's own master, lord, or teacher.
    • This music also plays during the battle against Mega Satan.

Bosses Boss Monstro.png
Chapter 1
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
GeminiStevenBlighted OvumDingleThe Duke of FliesFamineFistulaGurglingsThe HauntLarry Jr.MonstroPinWidowThe FallenThe Headless Horseman
DangleLittle HornRag ManTurdlings
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
ChubC.H.A.D.Carrion QueenDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
The ForsakenThe FrailThe Stain
Big HornRag Mega
Chapter 3
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateMonstro IIGishLokiMask of InfamyWarThe FallenThe Headless HorsemanMom
Sisters Vis
Chapter 4
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsTriachnidDeathLokiiMama GurdyMr. FredScolexTeratomaThe FallenThe Headless HorsemanMom's HeartIt Lives
Sisters VisThe Matriarch
Blue Womb
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
Chapter 6
Stage Dark Room icon.pngStage The Chest icon.png
???The LambMega Satan
The Void
Stage The Void icon.png
Greed Mode
Ultra Greed
Ultra Greed
Ultra Greedier
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
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Characters Characters MainPageBabies.png Co-op Items Items Item pools Item pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets