Boss Guides

Struggling with ULTRAKILL's bosses? This guide breaks down every boss from Prelude to Act III, offering tips and strategies to help you conquer Hell. Get ready to P-Rank!

Alright, so you're diving into ULTRAKILL and finding yourself a bit overwhelmed by the sheer number of things trying to rip you to shreds? Totally understandable. This game throws a lot at you, especially when you're just starting out. But don't sweat it, I'm here to help you navigate through the chaos and actually beat these guys. Think of this as your buddy V1 showing you the ropes, not some stuffy manual. We're going to go through the bosses level by level, just like the game does. We'll start with the Prelude, then move through Act I: Infinite Hyperdeath, and so on. I'll point out who you're up against, what makes them tick, and most importantly, how to not die immediately. ## PRELUDE This is where it all begins, the tutorial levels that still manage to pack a punch. You'll learn the basics here, but some of these encounters can still trip you up if you're not careful. ### OVERTURE: THE MOUTH OF HELL This is more of an introduction than a true boss fight, but it's worth mentioning. | Number and Name | Act Part | Enemies | Secrets / Unlockables | Challenge | P-Rank Requirements | |---|---|---|---|---|---| | [Intro](https://ultrakill.fandom.com/wiki/Intro "Intro") | N/A | Hanging [Filth](https://ultrakill.fandom.com/wiki/Filth "Filth") (immovable, less hp, can't move) | * 1 Soul Orb (fake) | N/A | N/A | | [0-1: INTO THE FIRE](https://ultrakill.fandom.com/wiki/0-1:_INTO_THE_FIRE "0-1: INTO THE FIRE") | PRELUDE /// FIRST | [Filth](https://ultrakill.fandom.com/wiki/Filth "Filth"), [Strays](https://ultrakill.fandom.com/wiki/Stray "Stray"), [Malicious Face](https://ultrakill.fandom.com/wiki/Malicious_Face "Malicious Face") (Boss) | * 5 Soul Orbs
* Unlock [Revolver](https://ultrakill.fandom.com/wiki/Piercer_Revolver "Piercer Revolver") | Get 5 kills with a single glass panel | Time: 2:30
Kills: 71
Style: 7000 | | [0-2: THE MEATGRINDER](https://ultrakill.fandom.com/wiki/0-2:_THE_MEATGRINDER "0-2: THE MEATGRINDER") | PRELUDE /// SECOND | [Filth](https://ultrakill.fandom.com/wiki/Filth "Filth"), [Strays](https://ultrakill.fandom.com/wiki/Stray "Stray"), [Swordsmachine](https://ultrakill.fandom.com/wiki/Swordsmachine "Swordsmachine") (Secret Encounter) | * 5 Soul Orbs
* Secret Mission [0-S](https://ultrakill.fandom.com/wiki/0-S:_SOMETHING_WICKED "0-S: SOMETHING WICKED")
* Unlock [Shotgun](https://ultrakill.fandom.com/wiki/Core_Eject_Shotgun "Core Eject Shotgun") early | Beat the secret encounter | Time: 2:00
Kills: 53
Style: 6000 | | [0-3: DOUBLE DOWN](https://ultrakill.fandom.com/wiki/0-3:_DOUBLE_DOWN "0-3: DOUBLE DOWN") | PRELUDE /// THIRD | [Filth](https://ultrakill.fandom..fandom.com/wiki/Stray "Stray"), [Schisms](https://ultrakill.fandom.com/wiki/Schism "Schism"), [Swordsmachine](https://ultrakill.fandom.com/wiki/Swordsmachine "Swordsmachine") (Boss) | * 5 Soul Orbs
* Unlock [Shotgun](https://ultrakill.fandom.com/wiki/Core_Eject_Shotgun "Core Eject Shotgun") | Kill only 1 enemy | Time: 3:30
Kills: 49
Style: 7000 | | [0-4: A ONE-MACHINE ARMY](https://ultrakill.fandom.com/wiki/0-4:_A_ONE-MACHINE_ARMY "0-4: A ONE-MACHINE ARMY") | PRELUDE /// FOURTH | [Filth](https://ultrakill.fandom..fandom.com/wiki/Stray "Stray"), [Schisms](https://ultrakill.fandom.com/wiki/Schism "Schism"), [Malicious Faces](https://ultrakill.fandom.com/wiki/Malicious_Face "Malicious Face") | * 5 Soul Orbs | Slide uninterrupted for 17 seconds | Time: 2:20
Kills: 53
Style: 8500 | | [0-5: CERBERUS](https://ultrakill.fandom.com/wiki/0-5:_CERBERUS "0-5: CERBERUS") | PRELUDE /// CLIMAX | [Cerberus](https://ultrakill.fandom.com/wiki/Cerberus "Cerberus") (Boss) | N/A | Don't inflict fatal damage to any enemy | Time: 2:00
Kills: 2
Style: 3200 | | [0-S: SOMETHING WICKED](https://ultrakill.fandom.com/wiki/0-S:_SOMETHING_WICKED "0-S: SOMETHING WICKED") | N/A | [Something Wicked](https://ultrakill.fandom.com/wiki/Something_Wicked "Something Wicked") | * Anxiety | N/A (Not shitting yourself) | N/A | ### [ACT I](https://ultrakill.fandom.com/wiki/Category:Act_I "Category:Act I"): INFINITE HYPERDEATH This is where things start to get serious. You'll be introduced to new enemies and more complex level designs. #### LAYER 1: [LIMBO](https://ultrakill.fandom.com/wiki/Category:Limbo "Category:Limbo") | Number and Name | Act Part | Enemies | Secrets / Unlockables | Challenge | P-Rank Requirements | |---|---|---|---|---|---| | [1-1: HEART OF THE SUNRISE](https://ultrakill.fandom.com/wiki/1-1:_HEART_OF_THE_SUNRISE "1-1: HEART OF THE SUNRISE") | LIMBO /// FIRST | [Filth](https://ultrakill.fandom..fandom..fandom.com/wiki/Schism "Schism"), [Drones](https://ultrakill.fandom.com/wiki/Drone "Drone"), [Malicious Face](https://ultrakill.fandom.com/wiki/Malicious_Face "Malicious Face") | * 5 Soul Orbs
* Unlock [Nailgun](https://ultrakill.fandom.com/wiki/Attractor_Nailgun "Attractor Nailgun")
* Secret Mission [1-S](https://ultrakill.fandom.com/wiki/1-S:_THE_WITLESS "1-S: THE WITLESS")
* [Slab](https://ultrakill.fandom.com/wiki/Alternate_Revolver "Alternate Revolver") Switch I | Complete the level in under 10 seconds | Time: 4:30
Kills: 76
Style: 8000 | | [1-2: THE BURNING WORLD](https://ultrakill.fandom.com/wiki/1-2:_THE_BURNING_WORLD "1-2: THE BURNING WORLD") | LIMBO /// SECOND | [Filth](https://ultrakill.fandom..fandom..fandom.com/wiki/Schism "Schism"), [Drones](https://ultrakill.fandom.com/wiki/Drone "Drone"), [Streetcleaners](https://ultrakill.fandom.com/wiki/Streetcleaner "Streetcleaner"), [Cerberus](https://ultrakill.fandom.com/wiki/Cerberus "Cerberus"), [Cancerous Rodent](https://ultrakill.fandom.com/wiki/Cancerous_Rodent "Cancerous Rodent") (Secret Encounter), [Very Cancerous Rodent](https://ultrakill.fandom.com/wiki/Very_Cancerous_Rodent "Very Cancerous Rodent") (Very Secret Encounter) | * 5 Soul Orbs
* [Slab](https://ultrakill.fandom.com/wiki/Alternate_Revolver "Alternate Revolver") Switch II
* Unlock [Nailgun](https://ultrakill.fandom.com/wiki/Attractor_Nailgun "Attractor Nailgun") if not grabbed in [1-1](https://ultrakill.fandom.com/wiki/1-1:_HEART_OF_THE_SUNRISE "1-1: HEART OF THE SUNRISE") | Do not pick up any [skulls](https://ultrakill.fandom.com/wiki/Skull "Skull") | Time: 4:40
Kills: 62
Style: 7000 | | [1-3: HALLS OF SACRED REMAINS](https://ultrakill.fandom.com/wiki/1-3:_HALLS_OF_SACRED_REMAINS "1-3: HALLS OF SACRED REMAINS") | LIMBO /// THIRD | [Filth](https://ultrakill.fandom..fandom.com/wiki/Stray "Stray")