Major changes are coming to the Wiki! To learn more and let your voice be heard, please go here.

Additionally, we are currently experiencing some bugs and glitches. We're working on fixing them, but please be aware this means certain images, such as the collection grid for items, will be replaced by errors for the time being.

XXXXXXXXL

From Binding of Isaac: Rebirth Wiki
Jump to: navigation, search
Font TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat X.pngFont TeamMeat L.png
IsaacIsaac
Full red heartFull red heartFull red heart
Table dividing line 1.png
 
 
Item Pool Treasure Room.png: yes          Item Pool Shop.png: yes
Boss Mom's Heart.png / Boss It Lives.png
Gold Heart Gold HeartGold HeartComplete challenge #21
 
XXXXXXXXL Defeat Mom for the 1st timeXXXXXXXXLXXXXXXXXL
Added in Afterbirth

XXXXXXXXL is Challenge #21. This challenge changes all floors to be the size of XL Womb, but does not combine the floors of each chapter. The goal is to defeat Mom's Heart/ It Lives.

Difficulty[edit | edit source]

Due to the floors being much bigger, it makes important rooms like Treasure Rooms and Shops take significantly longer to find, which can make the run difficult if Isaac has rather weak items. It also makes Secret and Super Secret Rooms much harder to find. Despite the fact that all floors are technically XL, there is only one treasure and boss room on each floor. On the plus side, since there are more rooms, there are more opportunities to generate pickup items.

Strategy[edit | edit source]

  • Items and pickups that reveal the map are very crucial, allowing easy maneuvering between Special Rooms throughout floors.
  • Teleportation cards, such as The Stars and The Hermit, are very valuable, as they allow easy access to Special Rooms. The Emperor is especially powerful, as it can be used to skip the entirety of a floor.
  • Avoid items that teleport Isaac at random, such as Cursed Skull Cursed SkullCursed Skull Icon.pngIf Isaac has less than one full red heart after taking damage, he will be immediately teleported to the last cleared room he was in., as they can significantly slow down progress by potentially teleporting him to the other side of the map. Picking up the Cursed Eye Cursed EyeCursed Eye Icon.pngGrants charged tears that can be fired in a tight burst of four. Getting hit while charging will teleport Isaac into another room. is not recommended for the same reasons.

Reward[edit | edit source]


Mom  Unlocks Mom Unlocks Mom  Unlocks
Added in Afterbirth †
The WombThe WombDefeat Mom for the 1st timeThe HarbingersThe HarbingersDefeat Mom for the 1st timeA Cube of MeatA Cube of MeatDefeat Mom for the 1st timeA HaloA HaloDefeat Mom using The BiblePuristPuristDefeat Mom for the first time XXXXXXXXLXXXXXXXXLDefeat Mom for the 1st timeSPEED!SPEED!Defeat Mom for the 1st timeHave a HeartHave a HeartDefeat Mom for the 1st timePRIDE DAY!PRIDE DAY!Defeat Mom for the 1st timeOnan's StreakOnan's StreakDefeat Mom for the 1st timeThe GuardianThe GuardianDefeat Mom for the 1st time Aprils foolAprils foolDefeat Mom for the 1st time

MainPageChallenges.png Challenges MainPageChallenges.png

Rebirth
1. Pitch Black 2. High Brow 3. Head Trauma 4. Darkness Falls 5. The Tank 6. Solar System 7. Suicide King 8. Cat Got Your Tongue
9. Demo Man 10. Cursed! 11. Glass Cannon 12. When Life Gives You Lemons 13. Beans! 14. It's in the Cards 15. Slow Roll 16. Computer Savvy
17. Waka Waka 18. The Host 19. The Family Man 20. Purist
Afterbirth
21. XXXXXXXXL 22. SPEED! 23. Blue Bomber 24. PAY TO PLAY 25. Have a Heart 26. I RULE! 27. BRAINS! 28. PRIDE DAY!
29. Onan's Streak 30. The Guardian
Afterbirth †
31. Backasswards 32. Aprils Fool 33. Pokey Mans 34. Ultra Hard 35. Pong
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
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