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EnragedOne-FentoKill-3.8.361 icon

FentoKill

ULTRAKILL mod which expands and refreshes some simple levels

By EnragedOne
Date uploaded 3 months ago
Version 3.8.361
Download link EnragedOne-FentoKill-3.8.361.zip
Downloads 1345
Dependency string EnragedOne-FentoKill-3.8.361

This mod requires the following mods to function

BepInEx-BepInExPack-5.4.2100 icon
BepInEx-BepInExPack

BepInEx pack for Mono Unity games. Preconfigured and ready to use.

Preferred version: 5.4.2100
EternalsTeam-PluginConfigurator-1.10.2 icon
EternalsTeam-PluginConfigurator

Used to configure plugins easily in Ultrakill

Preferred version: 1.10.2

README

Fentokill (Hotfix #2 Hotfix! Update)

Fully customizable ULTRAKILL mod which expands and refreshes some simple levels

(Highly inspired by UST, Encores and Custom Levels)

With new support for Discord Status and PluginConfigurator

You can customize entire difficulty like you want!

You all asked for that too much

And also mod with different rank requirements and change log!

drawing

What exactly does this mod do?

This mod improves variety of different enemies and mechanics on some simple levels making them more FUN and interesting

And also adds new settings to edit game's difficulty to match your skill level or gaming interests

You can make Fentokill harder on FENTOKILL+ mode or easier on SKILLISSUE mode in the settings

Mostly changing enemies in levels and fixing boring moments

drawing

Should I really try this?

Absolutely YES especially if you like the game and want to test game mechanics in a more FUN way or if you have nothing to do and have already started going through the challenges out of boredom

And also if you want to test more difficulty settings

And before starting I highly recommend getting a full arsenal otherwise it will be boring and many techs will be unavailable

drawing

!!! - IMPORTANT - !!!

At the moment ONLY [0-1 INTO THE FIRE] AND [7-4 ...LIKE ANTENNAS TO HEAVEN] Levels has been changed and tested !!!

More details about the Changes

After starting a level the mod makes Changes such as:

  1. Spawning new more creative enemies instead of some of the old ones
  2. Creating more unique situations through more unique enemies combinations
  3. Adding enhancements and new mechanics to boring enemies
  4. Changing enemy positions for more interesting positioning and utilizing level geometry
  5. Balancing enemy strengths to provide a little more challenge
  6. Surpassing expectations with the final combination of gameplay, engaging the player in active gameplay instead of monotonous bullying of weak enemies without skill improvement
  7. New Rank Requirements for changed levels (Slightly harder to get a P rank so it feels like a worthy achievement)
  8. New Settings for PluginConfigurator

Even more about everything in the CHANGELOG!

About Support for PluginConfigurator + Config Options:

All Options (click arrow to open)

SOME CHANGES REQUIRE LEVEL RESTART (They marked with +)

SOME CHANGES MAY REQUIRE LEVEL RESTART (They marked with +-)

Main / Global Settings

  1. bool Disable Level Changes +
  2. bool Modify Every Enemy With Changes Below (For vanilla enemies)

ULTRAENRAGED Difficulty Options

  1. bool Forse Enemy UltraEnraged**+**
  2. bool Disable UltraEnrage Hazards

Extra Respected Difficulty Options

  1. bool Make Friendly Fire Weaker
  2. bool Make Every Enemy Pre Sanded
  3. bool Make Every Enemy Radiant
  4. float Change Hard Damage Multiplier
  5. float Change Radiance Tier Multiplier
  6. float Add Extra Radiance Tiers

Skill Issue Options

  1. bool Disable Most Fento Buffs +
  2. bool Disable Pre Sanded Buff
  3. bool Disable Radiance Buff

Fento Custom Mechanics Options

  1. bool Disable Radiance Idols INCREASE RADIANCE TIER Mechanic
  2. bool Disable UNIQUE SYMBIOTIC PAIRS Mechanic +

Extra Radiance Options

  1. float Change Radiance Health Multiplier
  2. float Change Radiance Damage Multiplier
  3. float Change Radiance Speed Multiplier

[7-4 ...LIKE ANTENNAS TO HEAVEN] Options

  1. bool Disable Self Defence +-
  2. bool Disable OverHeat +-
  3. float Change Fire Rate Mult
  4. float Change Gently Wait Time
  5. float Change Cooldown Time

Individual Weapons

  1. bool Disable OBLITERATION BEAM CANNON
  2. bool Disable DRONE SWARM PROTOCOL
  3. bool Disable SUPPORT DROP FORCES
  4. bool Disable NUCLEAR THUNDERBOLT EMITTER
  5. bool Disable CARPET BOMBING BATTERY
  6. bool Disable LASER GRID
  7. bool Disable E.M.P. CHARGE SERVICES
drawing

Why ONLY [0-1 INTO THE FIRE] And [7-4 ...LIKE ANTENNAS TO HEAVEN] Levels?

The mod has turned out to be extremely content-rich and its playthrough may take a while to complete

Fentokill development is also extremely long, so for further creation of levels I need more experience and free time, which at the moment I do not have.

It is necessary to invent new interesting scenarios that are really FUN to experience but so far after 210+ hours of playtests and development my inspiration has run out (maybe later when I have more experience I will make an update but I don't think huge updates will be before the release of layer 8).

I will be more motivated if YOU will share YOUR experience playing this modification and I will be especially interested in level walkthrough videos especially on P ranks

drawing

Thank you all for your incredible Feedback

I am greatly inspired by your thoughts and ideas!

I'll add more awesome content to make mod even more interesting!

By the way you don't f===ing need to play the game on MAXIMUM DIFFICULTY ONLY lmao, play the game in a way that gives you FUN and new experience, not in a way that gives you pointless mind torture

If it's too difficult now you can make this mod harmless and complete it without any challenge

At least try to play the mod before criticize something

And yes getting P rank now does not require any extraordinary skills just play involved or just use skill issue options in settings

This version is in the testing phase before new BIG update!

I fixed most of the problems, but not sure if all of them

Technically, both FentoKill levels are fully playable and can be completed (i hope)

However, due to issues in the current version of the game, you can expect lag and bugs

If you're experiencing major problems the best thing you can do is downpatch game version to Revamp and use [FentoKill Version number 3.6.286]

CHANGELOG

CHANGELOG

3.10.390 - 2026-05-11 --- The 2² Patch 2²

// The 2² Patch 2² //

View changes (click arrow to open)

Many other bug fixes........................................................................

3.10.385 - 2026-05-04 --- The Patch Patch

// The Patch Patch //

View changes (click arrow to open)

! New level names and separate save slots ! (inspired by BillionNemesis)

More improvements to [7-4 ...LIKE ANTENNAS TO HEAVEN] and ALTERNATIVE PATH

And maybe something else...

3.9.370 - 2026-04-22 --- The Billion Patch

// The Billion Patch //

View changes (click arrow to open)

Imroved support for BillionNemesis ([0-1 INTO THE FIRE] is fully playable with both mods now)

And some bug fixes

3.9.367 - 2026-04-17 --- Patch 17d2 Patch!

// Patch 17d2 Patch! Update //

View changes (click arrow to open)

Some improvements and many fixes for [0-1 INTO THE FIRE] and [7-4 ...LIKE ANTENNAS TO HEAVEN]

New enemy modifier and etc

Added new level icons in the selection menu

Some another improvements for the sandbox stuff

3.8.361 - 2026-04-13 --- Hotfix #2 Hotfix!

// Hotfix #2 Hotfix! Update //

View changes (click arrow to open)

Numerous improvements for [0-1 INTO THE FIRE] and [7-4 ...LIKE ANTENNAS TO HEAVEN]

Some balance adjustments, fixes and improvements to the level logic

Updated level icons, names and overall improvements for Discord Status Support

Many improvements for the sandbox stuff

Some new settings and [UE] improvements (WIP)

// New Rank Requirements for [0-1 INTO THE FIRE] Level //

Rank Time Kills Style
S 06:40 79 50,000
A 11:07 66 36,667
B 15:34 55 23,334
C 20:00 40 10,000

// New Rank Requirements for [7-4 ...LIKE ANTENNAS TO HEAVEN] Level //

Rank Time Kills Style
S 11:00 104 70,000
A 18:20 87 51,334
B 25:40 70 32,667
C 33:00 52 14,000

3.7.336 - 2026-03-21 --- Fixed Stable Build

I forgot to switch to the stable build earlier lol (should be fixed now)

3.7.335 - 2026-03-20 --- More adjustments

// MORE ADJUSTMENTS Update //

View changes (click arrow to open)

Logic for saves has been fixed

Activation fixes for ALTERNATIVE PATHS

Some FPS drops have been fixed (probably)

(Another) Many balance changes and bug fixes (mostly for [UE])

And Also Some Bonus Spoilers (click arrow to open)

[UE] has been significantly improved, and the main work on enemy AI has been completed

More interesting content is coming next

3.6.299 - 2026-03-03 --- Fraud Fix

// FRAUD FIX Update //

View changes (click arrow to open)

! First Update For Fraud Before Revamp !

Fixed Mod (and a few bugs) for the current game version

Refined ALTERNATIVE PATHS for [0-1 INTO THE FIRE] and [7-4 ...LIKE ANTENNAS TO HEAVEN] (Thanks for the feedback)

Added Discord Status Support

Added even more Additions for Sandbox mode

Many balance changes and bug fixes (mostly for [UE])

And Also Some Spoilers with News (click arrow to open)

I successfully ported all [UE] enemy reworks and reworked new ones for the Fraud layer

But in the end, it wasn't without problems. Fraud turned out to be insanely catastrophic for optimization :(

So I don't see any reason to release new big update before game optimization fix (Literally unplayable rn)

The lag situation may improve after some time, and I will notify if anything changes

3.6.286 - 2026-02-23 --- 0-1 | 7-4 Revamp

// [0-1 INTO THE FIRE] | [7-4 ...LIKE ANTENNAS TO HEAVEN] Revamp Update //

View changes (click arrow to open)

! Last Update For Revamp Before Fraud !

Reworked [0-1 INTO THE FIRE] and [7-4 ...LIKE ANTENNAS TO HEAVEN] (Many arenas were slightly altered)

Added ALTERNATIVE PATHS and CHALLENGES that can be taken instead of the level cheese before

Added PROGRESS SAVING SYSTEM for: Challenge | P rank | Custom difficulty (coming soon)

Added NEW SETTINGS in the settings menu (More customization will be soon)

Some Additions for Sandbox mode and small secrets

Many bug fixes (like a lot)

And Also Some Spoilers (click arrow to open)

The main part of the next [UE] Major update is 80% complete

More like most of the [UE] enemy reworks had already been completed, including a couple of bosses

[UE] Prelude | Overture: Mouth of Hell Almost Finished and you can already play it if you want to get a feel of what will be soon

See you after the fraud... :)

2.5.216 - 2025-11-04 --- Rewrite Test

// Rewrite Test Update //

View changes (click arrow to open)

Most bugs have been fixed, including broken checkpoints on [7-4 ...LIKE ANTENNAS TO HEAVEN]

[7-4 ...LIKE ANTENNAS TO HEAVEN] received improvements and should feel more “complete“

EXTERNAL DEFENSE SYSTEMS have been improved and now much more fun than before

Enemy modification method has been revamped

And many other small changes

2.4.164 - 2025-05-26 --- Massive 7-4-F Update

// Massive [7-4 ...LIKE ANTENNAS TO HEAVEN] Level Update //

View changes (click arrow to open)

Most arenas are EXPANDED and enemies are SIGNIFICANTLY CHANGED

1000-THR "Earthmover" now can be +ENRAGED

1000-THR "Earthmover" now has EXTERNAL DEFENSE SYSTEMS and INTERNAL DEFENSE SYSTEMS including:

  • OBLITERATION BEAM CANNON
  • DRONE SWARM PROTOCOL
  • SUPPORT DROP FORCES
  • NUCLEAR THUNDERBOLT EMITTER
  • CARPET BOMBING BATTERY
  • LASER GRID (2 phases)
  • E.M.P. CHARGE SERVICES

Which makes gameplay more DIFFICULT, but can also provide some ADVANTAGES (Can be customized)

New ENEMY VARIATION TYPE - IDOL MERGED ENEMIES that WEAKER WITHOUT PROTECTION (Alt Pump Charge and Alt Marksman can be very Useful)

Final countdown increased by 30 seconds for all difficulties (Otherwise, level is almost impossible to complete)

Walls of hot flesh inside now also deal 15 damage to the player

More compact config menu

And a small addition to Tip Of The Day

[0-1 INTO THE FIRE] Difficulty has been balanced slightly

// New Rank Requirements for [7-4 ...LIKE ANTENNAS TO HEAVEN] Level //

Rank Time Kills Style
S 11:00 89 52,800
A 12:00 78 48,000
B 16:00 50 28,800
C 25:20 16 11,200

// New Rank Requirements for [0-1 INTO THE FIRE] Level //

Rank Time Kills Style
S 06:45 71 45,500
A 08:19 66 32,500
B 13:30 55 19,500
C 21:36 40 6,500

// More Customization Settings //

[7-4 ...LIKE ANTENNAS TO HEAVEN] Options

  1. bool Disable Self Defence +-
  2. bool Disable OverHeat +-
  3. float Change Fire Rate Mult
  4. float Change Gently Wait Time
  5. float Change Cooldown Time

Individual Weapons

  1. bool Disable OBLITERATION BEAM CANNON
  2. bool Disable DRONE SWARM PROTOCOL
  3. bool Disable SUPPORT DROP FORCES
  4. bool Disable NUCLEAR THUNDERBOLT EMITTER
  5. bool Disable CARPET BOMBING BATTERY
  6. bool Disable LASER GRID
  7. bool Disable E.M.P. CHARGE SERVICES

SOME CHANGES MAY REQUIRE LEVEL RESTART (They marked with +-)

1.3.89 - 2025-04-29 --- THE GREAT QOL Update

// Large Customization Update //

View changes (click arrow to open)

Now you can customize entire difficulty for yourself!

  • Support for PluginConfigurator + New Config Options:

Main / Global Settings

  1. bool Disable Level Changes +
  2. bool Modify Every Enemy With Changes Below (For vanilla enemies)

Extra Respected Difficulty Options

  1. bool Make Friendly Fire Weaker
  2. bool Make Every Enemy Pre Sanded
  3. bool Make Every Enemy Radiant
  4. float Change Hard Damage Multiplier
  5. float Change Radiance Tier Multiplier
  6. float Add Extra Radiance Tiers

Skill Issue Options

  1. bool Disable Most Fento Buffs +
  2. bool Disable Pre Sanded Buff
  3. bool Disable Radiance Buff

Fento Custom Mechanics Options

  1. bool Disable Radiance Idols INCREASE RADIANCE TIER Mechanic
  2. bool Disable UNIQUE SYMBIOTIC PAIRS Mechanic +

Extra Radiance Options

  1. float Change Radiance Health Multiplier
  2. float Change Radiance Damage Multiplier
  3. float Change Radiance Speed Multiplier

SOME CHANGES REQUIRE LEVEL RESTART (They marked with +)

Also you can easily exploit customization settings and it turned out to be so much fun that I provided more features for that

  • New Respect, Aura and Skill Issue system
  • New logos for FENTOKILL+ and SKILLISSUE mode
  • Visual additions to the level completion
  • Some visual improvements for UI

1.2.69 - 2025-04-26 --- Mini Update 2

// New Rank Requirements for [0-1 INTO THE FIRE] Level //

View changes (click arrow to open)
Rank Time Kills Style
S 06:15 71 49,000
A 07:42 66 35,000
B 12:30 55 21,000
C 20:00 40 7,000
  • New visual enhancements to show modified levels
  • Improved description and change log

1.1.61 - 2025-04-23 --- Mini Update 1

// CHANGELOG Added //

View changes (click arrow to open)

New INCREASE RADIANCE TIER Mechanic for Radiance Idols

[0-1 INTO THE FIRE] Level - Updated With Changes:

  • Buffed enemies in the secret room
  • Updated second hint with new Radiance Idols Mechanic
  • Upgraded all idols into Radiance Idols

1.0.48 - 2025-04-17 --- Test Release

// Official FENTOKILL Test Release //

View changes (click arrow to open)

[Main menu] Visualy modified

[0-1 INTO THE FIRE] Level - Updated With Changes:

  • New UNIQUE SYMBIOTIC PAIRS Mechanic for a few different enemies
  • New FENTOKILL intro for [0-1 INTO THE FIRE] Level
  • New different enemies stuff

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