SPEED!

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IsaacIsaac
Full red heartFull red heartFull red heart
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Item Pool Treasure Room.png: yes          Item Pool Shop.png: yes
Boss Mom's Heart.png / Boss It Lives.png
within 16 minutes, otherwise under constant periodic damage every 10 seconds.
Get out of Jail Free Card Get out of Jail Free CardGet out of Jail Free CardComplete challenge #22
 
SPEED! Defeat Mom for the 1st timeSPEED!SPEED!
Added in Afterbirth

SPEED! is Challenge #22. In this challenge, all enemies are sped up as if under the "speed up" effect of the Broken Watch Broken Watch. Isaac also has greatly increased movement speed as well. The goal is to defeat Mom's Heart or It Lives with a "soft" time limit of 16 minutes.

Difficulty[edit | edit source]

This is arguably one of the hardest challenges in the game, for two major reasons. Firstly, the increased speed for both the enemies and Isaac can make most routine rooms and bosses challenging. More importantly, the 16-minute soft time limit is also very hard to beat and may force the player to forgo exploring for rewards that might have helped them later on. Note that the time limit is not a "hard" one and that the game is not over when the countdown timer reaches 0; however, from that point onwards Isaac will start taking half a heart of damage every 10 seconds, or a full heart of damage starting from chapter 4.

Strategy[edit | edit source]

General[edit | edit source]

  • Health is always important, but even more so in this challenge. Not only will health compensate for the damage taken, be it from the more difficult rooms/bosses or the timed damage, but it can also be used for Devil Deals to access its high DPS item pool. Items that generates health or protection thus help greatly, These include The Wafer The Wafer, Cancer Cancer, Yum Heart Yum Heart, Unicorn Stump Unicorn Stump, Prayer Card Prayer Card, and many many more.
  • Blank Card Blank Card is a powerful item in this run, as there are cards and runes such as "The Emperor", "The Sun", "Ansuz", and "Ehwaz" which can allow both faster progression through the game. Certain cards and runes such as, "The Hierophant", "The Lovers ", "The Chariot", "The Sun", "Algiz", and "Dagaz" can also act as health regeneration or protection to counteract the timed damage or the increased difficulty in general.
  • Getting the Stop Watch Stop Watch will make this challenge easier, since it will slow all enemies in the room when Isaac takes damage, counteracting their increased speed.
  • The Ludovico Technique The Ludovico Technique shouldn't be picked up without high shot speed, as it will move slower than most enemies.
  • Since Isaac starts with increased speed, Taurus Taurus can be used to start every room with the My Little Unicorn My Little Unicorn effect making it effective for clearing rooms quickly. The invincibility from it can also block timed damage occasionally.
  • The Bible The Bible can be used to instantly kill Mom and It Lives, making it a more valuable item in this run. In the same vein, Added in Afterbirth †Plan C Plan C is also useful, though only against the final boss.

Speed run[edit | edit source]

The adverse effect of not finishing the run in within 16 minutes (periodic damage every 10 seconds) can be simply avoided by beating the timer.

  • If the player wishes to beat the timer, it might be a good idea to cut down exploring to a minimum. Find and visit the Treasure Room, occasionally the shop, and the boss, then move on as soon as possible. The Compass The Compass, the Crystal Ball Crystal Ball and The Mind The Mind are very useful if this is the desired strategy, as is "The Emperor" card. Floor skipping with We Need to Go Deeper! We Need to Go Deeper! and such are also valuable time-savers, as long as the player is confident with their current set of items.
  • Isaac's highly increased speed is a powerful asset to rapidly completing this run but can be dangerous as the player may accidentally run over spikes or into enemies/bullets that they otherwise would not run into. It is important to be careful and adjust to the speed-up.
  • Anything that could help to clear rooms faster is going to alleviate some of the difficulty of this challenge. Damage and Tear boosting items are thus a potential priority, making Devil Deals desirable because of their DPS heavy item pool. "Room clearer" items such as Toxic Shock Toxic Shock and "Boss killer" items such as Head of Krampus Head of Krampus are also very useful for speeding up progress.
  • Avoid Challenge Up (i.e. Purple Heart Purple HeartTrinket Purple Heart icon.pngIncreases the chance of encountering champion enemies and bosses., Champion Belt Champion Belt) since Champion enemies are not only much harder to kill, they will also take much longer to kill, and the player is already short on time.
  • Boss Rush is likely to appear on this challenge if the player is trying to beat the timer, but it should be avoided unless there is a way to teleport out of it or skip it.
  • Using bombs for damage or skipping rooms might be necessary if one wishes to beat the timer. Automatically-replenishing explosives (Ipecac Ipecac, Dr. Fetus Dr. Fetus, etc.) will greatly aid the player in being to do this.
  • Black Candle Black Candle is a valuable item to purchase from the shop, as it prevents Isaac from being afflicted by Curse of the Lost and Curse of the Maze, both of which can waste precious time. The Dagaz rune will also remove curses for a single floor if used.
  • Teleport Teleport, if used wisely, can save a lot of exploration time by teleporting whenever Isaac doesn't appear to be near rooms of interest. This will inevitably cut down the number of rooms that the player needs to explore.
  • Added in Afterbirth † The player will want to make sure they have less than 20 items and 10 tear damage; otherwise, they risk a 1 in 20 chance of being teleported to The Void after defeating Mom. While this skips both floors in chapter 4, it also forces the player to face one of the hardest bosses in the game, while going through a particularly large floor, possibly having to fight more than one boss, all the while having the game sped up in general. While this might not be an issue if the player went with the alternative strategies mentioned below, it will make finishing the game in under 16 minutes very unlikely.

Slow and Steady[edit | edit source]

After 16 minutes, the periodic damage taken every 10 seconds can be counteracted by generating enough health or obtaining enough protection against said damage.

  • The timed damage can be absorbed by the Holy Mantle Holy Mantle, making it an even more valuable asset since Isaac can leave the just-cleared room the way he came, re-enter it, wait until the timed damage is dealt, and proceed. By doing so, Isaac can get a 20-second buffer (10s if hit) to rinse and repeat the process without taking any damage.
  • Pyromaniac Pyromaniac and explosives (Curse of the Tower Curse of the Tower or any other way to get a lot of bombs) allows Isaac to survive long after the 16-minute limit, and in the case of Pyromaniac with automatically-replenishing explosives such as No. 2 No. 2, very likely the entirety of the run.
  • Guppy's Paw Guppy's Paw in the late game can potentially give the player up to 6 minutes of borrowed time, 12 minutes with The Wafer, and even more if the player happens to find HP upgrades in the final moments of the run.
  • Isaac's Heart Isaac's Heart makes Isaac completely immune to the timed damage.
  • Several Sharp Plug Sharp Plug + The Wafer The Wafer/Cancer Cancer combos will also allow effectively infinite health.
  • Items that grant health or protection on hit such as Old Bandage, Gimpy, Virgo, and Celtic Cross are useful for surviving past the timer in general.
    • Added in Afterbirth † The items above are also more effective when in possession alongside Added in Afterbirth †Dull Razor Dull Razor.

Notes[edit | edit source]

  • Before a patch, Isaac moved at normal speed while all enemies moved faster. It was changed to give Isaac increased speed, as the challenge was deemed to be unfairly difficult before.

Reward[edit | edit source]

Trivia[edit | edit source]

  • If Isaac dies to the timed damage, his will depicts a stopwatch where normally a sketch of the enemy that killed Isaac would be.


Mom Unlocks Mom Unlocks Mom Unlocks
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

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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
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