# ULTRAKILL Patch 16c Changelog

- Product: ULTRAKILL (https://whatsnew.fyi/product/ultrakill)
- Vendor: Arsi "Hakita" Patala
- Date: 2025-03-03
- Original notes: https://store.steampowered.com/news/app/1229490/view/519706708688242273
- Permalink: https://whatsnew.fyi/product/ultrakill/releases/2025-03-03-patch-16c-changelog

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Fixed the custom music option in the Cyber Grind
- **fixed** — Fixed a bug that caused the player to clip through thin ceilings
- **fixed** — Fixed the 5-2 idol room disappearing when entered
- **changed** — Sped up punch exhaustion regeneration by 25%
- **removed** — Removed all console logs and warnings since they caused performance hitches for some players
- **changed** — Remember Last Used Weapon now carries over between levels
- **fixed** — Last Used Weapon bind no longer considers each variation a separate weapon
- **fixed** — Fixed the Sandbox rebuilt navmeshes not working
- **fixed** — Fixed the tutorial graphics options not working
- **changed** — Insurrectionists are now immune to the Cyber Grind laser grid
- **fixed** — Hitting an enemy with the ground slam no longer causes the player to not get the appropriate vertical height after jumping from that slam
- **fixed** — Ground slam shockwaves no longer have 0 launching power if the player jumps before the shockwave comes out
- **fixed** — Enemy outlines no longer appear through walls sometimes
- **fixed** — Fixed assist outlines not working in some levels
- **fixed** — Fixed visual artifacting on the small railcannon meter
- **fixed** — Fixed the small railcannon meter not working properly with the Always On Top option
- **added** — Added flesh walls to the tops of the P-1 parasite decorations for collision
- **fixed** — Fixed more P-2 OOBs
- **changed** — Clash mode now ignores air friction when moving fast enough
- **changed** — Clash mode camera now strictly follows the player's vertical position in free camera mode

-  Fixed the custom music option in the Cyber Grind

-  Fixed a bug that caused the player to clip through thin ceilings

-  Fixed the 5-2 idol room disappearing when entered

-  Sped up punch exhaustion regeneration by 25%

-  Removed all console logs and warnings since they caused performance hitches for some players

-  Remember Last Used Weapon now carries over between levels

-  Last Used Weapon bind no longer considers each variation a separate weapon

-  Fixed the Sandbox rebuilt navmeshes not working

-  Fixed the tutorial graphics options not working

-  Insurrectionists are now immune to the Cyber Grind laser grid

-  Hitting an enemy with the ground slam no longer causes the player to not get the appropriate vertical height after jumping from that slam

-  Ground slam shockwaves no longer have 0 launching power if the player jumps before the shockwave comes out

-  Enemy outlines no longer appear through walls sometimes

-  Fixed assist outlines not working in some levels

-  Fixed visual artifacting on the small railcannon meter

-  Fixed the small railcannon meter not working properly with the Always On Top option

-  Added flesh walls to the tops of the P-1 parasite decorations for collision

-  Fixed more P-2 OOBs

-  Clash mode now ignores air friction when moving fast enough

-  Clash mode camera now strictly follows the player's vertical position in free camera mode (ie. using the cheat outside 4-S)

-  Fixed the Prime, Testament and Sandbox terminals not playing music

-  Fixed Malicious Faces and all Drone-type enemies healing 10x from nails (Malicious Faces and Virtues still heal 3x)

-  Spawner arm altars now have proper collision

-  Fire damage from the Firestarter's gasoline no longer causes hard damage

-  Fixed the superheal and dual wield powerups being darker than they should be

-  The 2-4 tram can no longer instakill Corpse of King Minos

-  The exit to 7-S no longer opens without a skull with the Disable Enemy Spawns cheat enabled

-  Fixed the ceiling ribbing in 0-E's exit hallway not having collision

-  Dying in lava no longer leaves the underwater filter on screen

-  Fixed the 5-3 upside down staircase having the old handrail

-  Fixed the sandbox explosive barrel having no texture when shot