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== Damage Scaling == |
== Damage Scaling == |
Revision as of 15:54, 9 May 2021
Delirium is a boss added in The Binding of Isaac: Afterbirth †. It is the main boss of The Void, and the final boss of Ending 20.
Behavior
Delirium's main form is stationary but teleports erratically around the room and performs the following attacks:
- Continuously sends out various overlapping patterns of white projectiles for the entire duration of the fight:
- 20 projectiles that slowly rotate clockwise or counterclockwise slowly while expanding
- 16 projectiles outwards in all directions
- 14 projectiles that rotate clockwise, counterclockwise, or back and forth while expanding.
- 10 Projectiles that fluctuate in and out while expanding.
- 8 slow-moving green-tinted Ipecac projectiles in all directions.
- 6 projectiles that travel outwards in a zig-zag pattern.
- 4 projectiles outwards in a lop-sided cross.
- 4 lines of 3 projectiles that spiral outwards.
- Spread of 5 projectiles in Isaac's direction.
- A burst of projectiles that travel outwards in random directions
- A stray short-range projectile in a random direction.
- The projectile size per each attack is random and varies from very small to moderately large.
- Transforms into bosses previously encountered during the run, which can include major bosses (Mom, It Lives, etc.).
- When it transforms into a boss, Delirium retains its own health, not the health of the boss it transformed into.
- When turning into certain multi-phase bosses (such as Isaac), Delirium copies the phase that that boss would be at, given their current health percentage.
- It can rarely transform into two bosses at once.
- Whether it turns into Champion variants or regular variants is random and does not depend on which variant was previously defeated.
- It is unable to properly transform into Hush's true form. In order for this to happen, very few bosses must be encountered in the run. Additionally, many of Hush's attacks do not work properly and the sprite is also unfinished.
- Can transform into Baby Plum, but cannot properly transform into other Repentance bosses.
- While Delirium technically can transform into the majority of bosses added, only Baby Plum has a unique sprite.
- Occasionally, it returns to its main form to perform projectile attacks at a faster pace.
- As it takes damage it becomes more aggressive: moving, teleporting, transforming, and attacking at a faster rate.
- It also takes on reddish hue to signify this change.
Upon defeat, the screen starts to glitch, fills with static, and the room switches between different environments, while short scenes from the current run are played ending with Delirium screaming and bursting into a small puddle of blood.
Gallery
Delirium as Gurglings.
Delirium as Little Horn.
Delirium as Turdlings.
Delirium as Rag Man.
Delirium as Famine.
Delirium as Gemini.
Delirium as Steven.
Delirium as Blighted Ovum.
Delirium as The Duke of Flies.
Delirium as The Husk.
Delirium as Larry Jr.
Delirium as The Hollow.
Delirium as The Haunt.
Delirium as The Forsaken.
Delirium as Widow.
Delirium as The Wretched.
Delirium as Pin.
Delirium as The Frail.
Delirium as Monstro.
Delirium as Monstro II.
Delirium as Gish.
Delirium as Fistula.
Delirium as Teratoma.
Delirium as Baby Plum.
Delirium as Gurdy Jr.
Delirium as Rag Mega.
Delirium as Gurdy.
Delirium as Big Horn.
Delirium as Pestilence.
Delirium as Polycephalus.
Delirium as The Stain.
Delirium as Chub.
Delirium as C.H.A.D.
Delirium as Carrion Queen.
Delirium as Mega Fatty.
Delirium as The Cage.
Delirium as Dark One.
Delirium as The Adversary.
Delirium as Peep.
Delirium as The Bloat.
Delirium as Mega Maw.
Delirium as The Gate.
Delirium as Brownie.
Delirium as Mask of Infamy.
Delirium as Sisters Vis.
Delirium as War.
Delirium as Loki.
Delirium as Lokii.
Delirium as Blastocyst.
Delirium as Scolex.
Delirium as Death.
Delirium as Conquest.
Delirium as Daddy Long Legs.
Delirium as Triachnid.
Delirium as Mr. Fred.
Delirium as Mama Gurdy.
Delirium as The Matriarch.
Delirium as The Fallen.
Delirium as Krampus.
Delirium as Uriel.
Delirium as Gabriel.
Delirium as Mom.
Delirium as Mom's Heart.
Delirium as It Lives.
Delirium as Satan.
Delirium as Isaac.
Delirium as ???.
Delirium as The Lamb.
Delirium as Mega Satan.
Delirium as Hush's first form.
Delirium as Hush's true form.
Delirium's main Form on Isaac's last will.
Unlockable Achievements
- Delirious - Defeat Delirium.
- Lil Delirium - Defeat Delirium for the 1st time.
- D infinity - Defeat Delirium as Isaac.
- Silver Dollar - Defeat Delirium as Cain.
- Dull Razor - Defeat Delirium as Eve.
- Bloody Crown - Defeat Delirium as Samson.
- Dark Prince's Crown - Defeat Delirium as Azazel.
- Compound Fracture - Defeat Delirium as Lazarus.
- Eden's Soul - Defeat Delirium as Eden.
- Euthanasia - Defeat Delirium as Lilith.
- Crooked Penny - Defeat Delirium as Keeper.
- Book of the Dead - Defeat Delirium as The Forgotten.
- Star of Bethlehem - Defeat Delirium as Bethany.
- Suplex! - Defeat Delirium as Jacob and Esau.
- Spindown Dice - Defeat Delirium as Tainted Isaac.
- Hypercoagulation - Defeat Delirium as Tainted Magdalene.
- Bag of Crafting - Defeat Delirium as Tainted Cain.
- Dark Arts - Defeat Delirium as Tainted Judas.
- IBS - Defeat Delirium as Tainted ???.
- Sumptorium - Defeat Delirium as Tainted Eve.
- Berserk! - Defeat Delirium as Tainted Samson.
- Hemoptysis - Defeat Delirium as Tainted Azazel.
- Flip - Defeat Delirium as Tainted Lazarus.
- Corrupted Data - Defeat Delirium as Tainted Eden.
- Ghost Bombs - Defeat Delirium as Tainted Lost.
- Gello - Defeat Delirium as Tainted Lilith.
- Keeper's Kin - Defeat Delirium as Tainted Keeper.
- Abyss - Defeat Delirium as Tainted Apollyon.
- Decap Attack - Defeat Delirium as Tainted Forgotten.
- Lemegeton - Defeat Delirium as Tainted Bethany.
- Anima Sola - Defeat Delirium as Tainted Jacob.
Damage Scaling
Damage scaling is an unclear mechanic introduced by Nicalis in The Binding of Isaac: Afterbirth to provide a more challenging experience to the players, enabling some enemies to retaliate against high damage attacks by deploying an "armor" of a sort to greatly reduce the amount of damage taken. Further details and an in-depth explanation may be found here.
Delirium ONLY has damage scaling while transformed, not while in their main form.
Notes
- Delirium is immune to Chaos Card.
- Plan C is ineffective against Delirium. While it does kill Delirium, because its death animation is longer than 3 seconds, Isaac will still be killed first.
- However, it works with Lazarus' Rags as it revives Isaac on the spot.
- Soul of Lazarus and Inner Child also revive Isaac in the same room he died in.
- Most entities that are considered to be bosses by the game (usually identified by ones that add the boss health bar to the screen) are marked as bosses that Delirium can transform into.
- The Seven Sins are exceptions to this.
- Delirium can transform into either form of Satan.
- When transformed into the Gurglings or the Turdlings, it only appears as one instead of two.
- When transformed into The Headless Horseman, it transforms into either the head or the body, but it doesn't transform into both.
- Each size of Fistula and Teratoma count as their separate boss which Delirium can transform into just like any other boss.
- This also results in many bugs due to unaccounted for transformations. These can be viewed in the bugs section of this page.
- When transformed into a boss that has multiple segments, the extra segments can be killed. The head, however, cannot.
- This also applies to Gemini - Suture can be killed but Contusion cannot.
- All parts of Fistula and Teratoma can be killed (though they have much greater health than normal), and the room remains empty until Delirium transforms again. Even though the segments have been killed, Delirium itself has not been killed.
- When transformed into two instances of the same boss (like Lokii or Sisters Vis), one of them can be killed but the other cannot.
- Delirium's Mom form only stomps and does not spawn enemies.
- If Delirium transforms into Gemini then undergoes another transformation, Suture doesn't disappear. Instead, he continues to chase Isaac as if Contusion was killed in the original fight.
- If Delirium transforms into Pink Champion Monstro it only takes the form of one and summons an extra Pink Champion Monstro.
- If Delirium transforms into The Lamb's second phase then undergoes another transformation, the body doesn't disappear and can be killed, just like the original Lamb's body.
- However, Delirium can also transform into the Lamb's body on its own. If this happens, the body disappears when Delirium transforms again.
Trivia
- Delirium is Isaac's manifestation of the "white light at the end of the tunnel" where the entire history of his life flashes before his eyes, moments before Isaac's death.[1]
- This is reflected by Delirium's death animation and its ability to shapeshift into previously encountered bosses.
- "Delirium" is the state of mental confusion of a person who is delirious. Symptoms include restlessness, illusions and incoherence.
- The arena can randomly change themes during the fight and is purely visual.
- Delirium is one of only two enemies immune to Chaos Card, the other being The Beast.
- Killing Delirium in a daily challenge counts as winning it. However, this does not reward any unique bonus points.
- Unlike other completion marks, defeating Delirium does not add a mark to the post-it note. Instead, the note will become tattered (with blood on Hard mode).
- If no other bosses have been encountered during the run, Delirium is unable to transform.
- There was a glitch in the original version of The Binding of Isaac: Afterbirth † which caused Delirium's main form to lack an idle animation. This was soon patched.
- In the game files, there is an unused Delirium transformation of Ultra Greed with a beard.
- Delirium can transform into Ultra Greed if he is encountered, but this is normally impossible as the bosses never appear in the same game mode.
- Every time Delirium transforms into another boss, it adds onto the encounters counter in the Bestiary.
- If Delirium transforms into Mom as soon as the battle starts, it stomps in the center of the room regardless of Isaac's position, similar to how the original Mom always starts her battle by stomping in the center of the room.
- Similarly, If Delirium transforms into Mom's Heart/It Lives as soon as the battle starts, it is accompanied by two Eyes in the same position as they are when they accompany the original Mom's Heart/It Lives at the start of its battle.
- Prior to Booster Pack #5, Delirium could turn into a Lil' Haunt.
- Also, if it transformed into Black Champion Brownie when at low health, It would spawn two Dank Squirts like the original boss would and die before the health bar actually fully depleted, without playing its death animation. This no longer happens because Delirium's Brownie form (normal and Black Champion) no longer transitions into the second phase (turning into a weakened Dangle or leaving two Dank Squirts, respectively).
- Delirium uses the exact same sprite for both its Dingle and Dangle forms.
- Delirium’s sprite for its Steven form is based on Ash from The End Is Nigh
- If Delirium transforms into Mega Fatty and performs the vomit attack, it attracts its White and Green projectiles towards it.
- The Crack the Sky beam attack summoned by Delirium as Isaac or ??? only covers around 1/3rd of the room starting from a corner.
- The only bosses Delirium can't normally transform are Ultra Greed, Ultra Greedier, Hush (it can, but via cheats or bugs) and any other Repentance boss except for Baby Plum, Bumbino, and The Pile.
- Despite having a Delirium form for Baby Plum, Bumbino and The Pile are missing one and will simply look like normal.
- Delirium's Hush form can be summoned With Delirious, but it has to be used many times in quick succession in a same room, which is only possible via cheats or the Debug Console.
- Delirium can even transform into the hidden incomplete Skinless Hush boss, which does not move and performs basic projectile attacks.
- There are a couple items themed around Delirium that play off of its ever-changing form- those being Lil Delirium and D infinity.
Bugs
Bug! | If Delirium transforms into an enemy like Chub with multiple hitboxes, the game may crash if one of the secondary hitboxes is hit by Chaos Card. |
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Bug! | If Delirium transforms into a segmented boss like Larry Jr. and every segment is killed, the post-boss theme will play as if Delirium has been killed. |
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Bug! | Delirium can transform into Fallen Uriel, Fallen Gabriel, Bumbino, and The Pile but they do not have unique Delirium skins. |
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Bug! | If Delirium transforms into Mega Satan, the sprites will bug out. It can attack normally, but the sprite may not be visible/half-visible/only showing the hands. |
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Bug! | On Isaac's last will, Delirium will be shown in its current form rather than its main one. Sometimes it will show his main form, even if Isaac is killed by a different form. |
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Bug! | Delirium can sometimes deal unavoidably glitched damage. For example, when transformed into Mom, Isaac can sometimes take damage before Mom's leg stomps. |
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Bug! | Sometimes, when Delirium transforms into a segmented boss, its health will appear to be lower than it is. This is usually purely visual and returns to normal whenever it transforms again, though it may not return to normal.[2] |
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Bug! | If Delirious is used to spawn Hush, Delirium will be able to transform into Hush. |
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Bug! | If Delirium transforms into Gemini, Suture will stay in its enraged form separated from Contusion if Delirium transforms to his main form after transforming into Gemini. |
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References
Delirium Unlocks | |||
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The Binding of Isaac: Rebirth |
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