Isaac Rebuilt
Isaac Rebuilt is a challenge added in The Reheated Update. In this challenge, the player starts as 
Tainted Magdalene with 
Sanguine Hook, 
4.5 Volt, 
Birthright, 
The Belt, a blindfold, and 
Yum Heart in their pocket slot. The goal is to defeat 
Mom.
- The Sanguine Hook Tainted Magdalene starts with in the challenge is latent, and replaces the ability to fire tears. It cannot be rerolled or removed.
- During the challenge, Sanguine Hook has the unique ability to drop a few temporary
Half Red Hearts when killing an enemy from pulling out the hook, which disappear after a short time.
- Enemies killed via hemorrhaging applied by Sanguine Hook won't count.
Difficulty
- The player cannot fire any tears, requiring them to use Sanguine Hook and Tainted Magdalene's lethal hugs in tandem to kill enemies.
- The addition of 4.5 Volt can make healing with Tainted Magdalene's Yum Heart to staunch her draining health generally less reliable outside of boss fights.
Strategies
In general, the strategies of playing Tainted Magdalene apply to this challenge as well; with very expendable health early in the run means Tainted Magdalene will usually be charging into groups of foes to slay them with her lethal hugs, while also maximize healing return from the amount of Heart drops gained while doing so.
Boss fights will be the player's main focus point, however, as this strategy is less useful against enemies with too much health for her hugs to handle swiftly. As Tainted Magdalene's tears are replaced with hooks during this challenge, learning how to use Sanguine Hook effectively is essential for completing the challenge alive.
- Because enemies become bruised while dragged by the hook, it may be wise to keep a hook on an enemy so Tainted Maggy can close the distance and deal the increased damage with her hugs, if an enemy needs to be finished off more quickly.
- Sanguine Hook can drop additional temporary Red Hearts when an enemy is killed by the hook being pulled out. However, this can at times be unreliable if the first hook doesn't kill them outright, as enemies can be killed by the hemorrhaging before they die from a hook pull.
- As Sanguine Hook can pull in pickups from a distance, it can help Tainted Magdalene grab Hearts before they can disappear.
- While 4.5 Volt can be a detriment to Tainted Magdalene's ability to use Yum Heart for regular combat scenarios against fodder enemies, 4.5 Volt becomes a potential boon for Tainted Magdalene's longevity during boss fights, as it can potentially allow using Yum Heart multiple times during them.
Unlockable Achievements
Sanguine Hook Secret
When playing the Isaac Rebuilt challenge, if the player mashes the Sanguine Hook up against a wall enough times, a note will appear on screen asking them to stop. If they continue, additional responses can appear, depending on the amount of times the hook has hit a wall. These responses are listed below:
| Number of times | Response |
|---|---|
| 200 |
|
| 500 |
|
| 650 |
|
| 700 |
|
| 750 |
|
| 760 |
|
| 770 |
|
| 780 |
|
| 800 |
|
| 850 |
|
| 900 |
|
| 955 |
|
| 980 |
|
| 1000 |
|
| 1020 |
|
| 1050 |
|
| 1100 |
|
| 1150 |
|
| 1200 |
|
| 1300 |
|
| 1350 |
|
| 1400 |
|
| 1450 |
|
| 1465 |
|
| 1500 |
|
| 2500 |
|
| 2550 |
|
| 2565 |
|
| 2600 |
|
| 2650 |
|
| 2680 |
|
| 2700 |
|
| 2800 |
|
| 2850 |
(In the start room)
|
|
(In Mom's Boss room, if Mom is alive)
| |
|
(In Mom's Boss room, if Mom is dead)
| |
|
(In the Ascent)
| |
|
(In the Boss Rush)
| |
|
(In Basement I)
| |
|
(In Cellar I)
| |
|
(In Burning Basement I)
| |
|
(In Downpour)
| |
|
(In Dross)
| |
|
(In Basement II)
| |
|
(In Cellar II)
| |
|
(In Burning Basement II)
| |
|
(In Caves I)
| |
|
(In Catacombs I)
| |
|
(In Flooded Caves I)
| |
|
(In Mines)
| |
|
(In Ashpit)
| |
|
(In Caves II)
| |
|
(In Catacombs II)
| |
|
(In Flooded Caves II)
| |
|
(In Depths I)
| |
|
(In Necropolis I)
| |
|
(In Dank Depths I)
| |
|
(In Mausoleum)
| |
|
(In Gehenna)
| |
|
(In Depths II)
| |
|
(In Necropolis II)
| |
|
(In Dank Depths II)
| |
|
(In Womb I)
| |
|
(In Utero I)
| |
|
(In Scarred Womb I)
| |
|
(In Corpse)
| |
|
(In Mortis. Although it has not yet been implemented, there is code for it just in case)
| |
|
(In Blue Womb)
| |
|
(In Sheol)
| |
|
(In Cathedral)
| |
|
(In Dark Room)
| |
|
(In the Chest)
| |
|
(In Void)
| |
|
(In Home)
| |
| 2900 |
(In the start room, on Basement I)
|
|
(In the start room, on Cellar I)
| |
|
(In the start room, on Burning Basement I)
| |
|
(In the start room, on Downpour I or Dross I)
| |
|
(In Mom's Boss room, if Mom is alive)
| |
|
(In Mom's Boss room, if Mom is dead)
| |
|
(In the Ascent)
| |
|
(In the Boss Rush)
| |
|
(In Basement I)
| |
|
(In Cellar I)
| |
|
(In Burning Basement I)
| |
|
(In Downpour or Dross)
| |
|
(In Basement II)
| |
|
(In Cellar II)
| |
|
(In Burning Basement II)
| |
|
(In Caves I)
| |
|
(In Catacombs I)
| |
|
(In Flooded Caves I)
| |
|
(In Mines)
| |
|
(In Ashpit)
| |
|
(In Caves II)
| |
|
(In Catacombs II)
| |
|
(In Flooded Caves II)
| |
|
(In Depths I)
| |
|
(In Necropolis I)
| |
|
(In Dank Depths I)
| |
|
(In Mausoleum)
| |
|
(In Gehenna)
| |
|
(In Depths II)
| |
|
(In Necropolis II)
| |
|
(In Dank Depths II)
| |
|
(In Womb I)
| |
|
(In Utero I)
| |
|
(In Scarred Womb I)
| |
|
(In Corpse)
| |
|
(In Mortis. Although it has not yet been implemented, there is code for it just in case)
| |
|
(In Blue Womb)
| |
|
(In Sheol)
| |
|
(In Cathedral)
| |
|
(In Dark Room)
| |
|
(In the Chest)
| |
|
(In Void)
| |
|
(In Home)
| |
| 2950 |
(In the start room, on Basement I)
|
|
(In the start room, on Cellar I)
| |
|
(In the start room, on Burning Basement I)
| |
|
(In the start room, on Downpour I or Dross I)
| |
|
(In Mom's Boss room, if Mom is alive)
| |
|
(In Mom's Boss room, if Mom is dead)
| |
|
(In the Ascent)
| |
|
(In the Boss Rush)
| |
|
(In Basement I)
| |
|
(In Cellar I)
| |
|
(In Burning Basement I)
| |
|
(In Downpour or Dross)
| |
|
(In Basement II)
| |
|
(In Cellar II)
| |
|
(In Burning Basement II)
| |
|
(In Caves I)
| |
|
(In Catacombs I)
| |
|
(In Flooded Caves I)
| |
|
(In Mines)
| |
|
(In Ashpit)
| |
|
(In Caves II)
| |
|
(In Catacombs II)
| |
|
(In Flooded Caves II)
| |
|
(In Depths I)
| |
|
(In Necropolis I)
| |
|
(In Dank Depths I)
| |
|
(In Mausoleum)
| |
|
(In Gehenna I or II)
| |
|
(In Depths II)
| |
|
(In Necropolis II)
| |
|
(In Dank Depths II)
| |
|
(In Womb I)
| |
|
(In Utero I)
| |
|
(In Scarred Womb I)
| |
|
(In Corpse)
| |
|
(In Mortis. Although it has not yet been implemented, there is code for it just in case)
| |
|
(In Blue Womb)
| |
|
(In Sheol)
| |
|
(In Cathedral)
| |
|
(In Dark Room)
| |
|
(In the Chest)
| |
|
(In Void)
| |
|
(In Home)
| |
| 3000 |
|
| 3050 |
|
| 3075 |
|
| 3125 |
|
| 3150 |
|
| 3200 |
|
| 3300 |
|
| 3350 |
|
| 3400 |
|
| 3450 |
|
| 3500 |
|
| 3550 |
|
| 3600 |
|
| 3700 |
|
| 3750 |
|
| 3800 |
|
| 3850 |
|
| 3900 |
|
| 4000 |
|
| 4050 |
|
| 4100 |
|
| 4150 |
|
| 4200 |
|
| 4300 |
|
| 4350 |
|
| 4400 |
|
| 4450 |
|
| 4500 |
|
| 4600 |
|
| 4650 |
|
| 4700 |
|
| 4750 |
|
| 4800 |
|
| 4950 |
|
| 4990 |
|
| 5000 |
|
| 5010 |
|
| 5050 |
|
| 5100 |
|
| 5150 |
|
| 5200 |
|
| 5250 |
|
| 5300 |
|
| 5350 |
|
| 5400 |
|
| 7500 |
|
| 7550 |
|
| 7600 |
|
| 7650 |
|
| 7700 |
|
| 7750 |
|
| 7800 |
|
| 7850 |
|
| 7900 |
|
| 7950 |
|
| 8000 |
|
| 8100 |
|
| 8150 |
|
| 9000 |
|
| 9050 |
|
| 9500 |
|
| 9550 |
|
| 9600 |
|
| 9650 |
|
| 9700 |
|
| 9750 |
|
| 9800 |
|
| 9850 |
|
| 9900 |
|
| 9950 |
|
| 10000 |
|
| 10050 |
|
| 10100 |
|
| 10150 |
|
| 1000000 |
|
| 1000050 |
|
| 1000100 |
|
| 1000150 |
|
| 1000200 |
|
| 1000250 |
|
| 1000300 |
|
| 1000350 |
|
| 1000400 |
|
| 1000450 |
|
| 1000500 |
|
| 1005000 |
|
| 1005050 |
|
| 10000000 |
|
| 10000050 |
|
| 10000100 |
|
| 10000200 |
|
| 100000000 |
|
| 1000000000 |
|
| 1000000100 |
|
| 1000000200 |
|
| 1000000300 |
|
| 10000000000 |
|
| 100000000000 |
|
| 1000000000000 |
|
| 1000000000100 |
|
| 1000000000200 |
|
| 1000000000300 |
|
| 1000000000400 |
|
Upon mashing Sanguine Hook against a wall for a total of 1 million times, the player will be granted a gold skin for Sanguine Hook as a reward for their commitment. This golden hook is only cosmetic, and will only appear during subsequent replays of the Isaac Rebuilt challenge.
Trivia
- This challenge is a reference to Madness Combat by Krinkels — more specifically, a reference to the Madness video 5 - DedmosRebuilt.fla
 Challenges 
| |
|---|---|
| Challenges |  Dad's Home+ -  Dirty Bubble Challenge -  The Real Jon -  Frog Mode -  Handle With Care -  Hands On -  Isaac Rebuilt -  Brick By Brick -  Tower Offense -  The Gauntlet
|
| Bonus Challenges |  Mr. Hands
|