Difference between revisions of "Backasswards"

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(Confirmed; I've done it before & just tried again. Reset until you get telepills/fool/hermit/etc, then go to the start room and enter the light to ride the express elevator to the top.)
(Bugs)
 
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{{Bug|If you teleport into the I AM ERROR room on the final floor of the challenge, there will be no exit, making the run impossible to beat.}}
 
{{Bug|If you teleport into the I AM ERROR room on the final floor of the challenge, there will be no exit, making the run impossible to beat.}}
{{Bug|If you get teleported out of the Mega Satan fight and go into the exit of the Dark Room, you will spawn in the exit on all subsequent floors, making the challenge easy to complete.}}
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{{Bug|If you get teleported out of the Mega Satan fight and go into the exit of the Dark Room, you will spawn in the exit on all subsequent floors, making the challenge easy to complete.}}{{Bug|After the Mega Satan fight the player may start the following floors already in the beam of light making the Mega Satan fight the only one in the challenge. If the player doesn't have enough health to make it to the Basement 1, your run is over. If the player has enough health to make it to Basement 1 they will be unable to move, to rectify this, simply exit the run, re-enter it and claim your reward.}}{{ChallengeNav}}
 
 
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[[fr:Backasswards]]
 
[[fr:Backasswards]]

Latest revision as of 09:00, 7 December 2017

Backasswards
Afterbirth† Indicator.png
Challenge number
31
Character
Isaac App.png
HUD Red Heart.pngHUD Red Heart.pngHUD Red Heart.png
Starting Items
8-10 random items
Available rooms
Item Pool Treasure Room.png: no          Item Pool Shop.png: yes
Goal
The Basement/The Cellar/Burning Basement I
Unlocks
Laz Bleeds More! Laz Bleeds More!
Unlocked by
Backasswards Defeat ??? or The Lamb for the 1st time

Backasswards is Challenge #31. You start off with 8-10 random items, and start on the Mega Satan boss fight. Your goal is to play the floors backwards, hence the challenge's namesake. Every floor you ascend, you lose the oldest item you have, and one red heart container.

Difficulty[edit | edit source]

Starting with random selection of items, and starting on the Mega Satan boss fight makes this challenge very difficult at first. But If you can defeat Mega Satan (as well as Satan, whom you fight on the next floor), the rest of the challenge becomes significantly easier.

Strategy[edit | edit source]

  • Try to get some really powerful few-item synergies. Resetting is safe, since achievements won't work.
    • Having Gnawed Leaf and something that can do damage while you're not moving, such as Daddy Long Legs or Smart Fly, can basically guarantee an eventual win. Damaging orbitals are also a big help.
    • Pyromaniac and Ipecac can heal you indefinitely, and also deal plentiful damage. Dr. Fetus/Epic Fetus or even Pyro can provide a slower version of the same effect.
    • The Wafer is an extremely useful item to reset in this challenge as well.
  • Going up a floor will remove one heart container and one passive item. If you have only one red heart container, something as simple as leaving the floor itself will end your run.
    • For this reason, be wary of taking devil deals at low health.
    • Soul Hearts and Black Hearts are not affected by this, however. Thus, Guppy's Paw is an extremely useful item for this run.
  • With resurrection or teleportation items (such as Teleport or Cursed Eye), it's possible to skip boss rooms by dying as being resurrected puts you outside of the room rather than back on the previous floor.
    • Despite this, do not get the Dead Cat. If you attempt to move onto the next floor while you only have 1 HP, you'll instantly die instead of progressing, wasting one of your lives in the process.
    • Likewise, do not get Ankh. If you resurrect as ???, each time you pass a floor you'll lose either a soul or black heart, increasing the difficulty of the challenge.
  • Shops spawn as normal above The Womb.
  • 0 - The Fool tarot card and Mom's Hand are both quick ways to get to the starting room.
  • Ehwaz and We Need to Go Deeper! generate closed exits to the next floor, so they cannot help Isaac skip the current floor.
  • Items to be removed first are the "first" items you picked up. This is the item in the rightmost column, in the lowest row of that column.
    • Halo of Flies will take two entire floors to be removed. You'll lose only one fly per floor. Keep this in mind in case you're afraid of losing a good synergy too early.
  • Cursed Eye allows difficult boss fights to be skipped by teleporting out.
  • It is possible to reach Hush if you beat It Lives in under 30 minutes, though doing so isn't recommended.

Reward[edit | edit source]

Bugs[edit | edit source]

Bug Bug! While entering an exit to the previous floor, if player kills the process (isaac-ng.exe) during the versus screen before a boss fight, re-entering the game will lead Isaac to the starting room of previous floor instead of the boss room. This allows the player to finish the challenge pretty easily without any actual fights.
Bug Bug! Sometimes the layout of the rooms makes traversing to the previous floor impossible. There might be a hole where the light is supposed to be and without flying, makes the run impossible to beat.
Bug Bug! If you teleport into the I AM ERROR room on the final floor of the challenge, there will be no exit, making the run impossible to beat.
Bug Bug! If you get teleported out of the Mega Satan fight and go into the exit of the Dark Room, you will spawn in the exit on all subsequent floors, making the challenge easy to complete.
Bug Bug! After the Mega Satan fight the player may start the following floors already in the beam of light making the Mega Satan fight the only one in the challenge. If the player doesn't have enough health to make it to the Basement 1, your run is over. If the player has enough health to make it to Basement 1 they will be unable to move, to rectify this, simply exit the run, re-enter it and claim your reward.

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MainPageAchievements.png Achievements MainPageAttributes.png Attributes MainPageBosses.png Bosses TarotCard.png Cards and Runes MainPageChallenges.png Challenges MainPageChapters.png Chapters
Isaac App.png Characters MainPageBabies.png Co-op Magic Mushroom Icon.png Items Isaac's Tears Icon.png Item Pools MainPageMonsters.png Monsters MainPageObjects.png Objects
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