Seasonal Events are scripted events that happen when the system clock is set to a specific date. Events only change the game cosmetically by adding appropriate headwear to all enemies and changing the main menu's music and subtitle. The background images of intermission cutscenes and [ 2-S: ALL-IMPERFECT LOVE SONG ] are also altered, adding headwear to characters present in them as well.
Notably, these events begin in real-time, rather than on game startup or level start; the moment the system time reaches a valid seasonal date, enemies will begin to spawn with the appropriate headwear.
Halloween[]
If the system clock is set from October 25th to October 31st, all enemies in the game (and V1) will have a glowing pumpkin placed on their head (or whatever equivalent of a head they have). Skulls will also be replaced with pumpkins, although their functionality will remain the same. Due to the glow that pumpkins emit, dark levels such as [ 0-S: SOMETHING WICKED ] or [ 4-3: A SHOT IN THE DARK ] will become much easier.
The main menu's "EARLY_ACCESS READY" text will disappear, and the text "HAPPY HALLOWEEN" will appear below it, as well as its music being played by spooky organs.
Christmas[]
If the system clock is set from December 22nd, 12:12 AM to December 28th, all enemies and skulls in the game (and V1) will wear red Santa hats.
The main menu's "-- EARLY ACCESS --" text will be replaced with "-- MERRY CHRISTMAS --", as well as its music getting additional Christmas cheer in its instrumentation with bell instruments.
Easter[]
If the system clock is set from Good Friday to Easter Sunday (changing every year), all enemies and skulls in the game will wear pink bunny ears.
The main menu's "-- EARLY ACCESS --" text will be replaced with "-- HAPPY EASTER --", as well as its music becoming much faster and overall more cheerful for the duration of the event.
April Fools[]
On April 1st, nothing about the main menu changes but in game the textures do get purposefully worse as a joke.
Trivia[]
- The first year of the Christmas event did not have its seasonal main menu music due to time constraints.[1]
References[]
- ↑ Asked: is there gonna be a new christmas bgm like the halloween update?
@ULTRAKILLGame Answered: No, we didn't have the time to do that for this christmas, so it'll have to wait until next year's.

![Screenshot 20251025 092425.png (291 KB) Main menu during Halloween [revamp]](https://static.wikia.nocookie.net/ultrakill/images/2/25/Screenshot_20251025_092425.png/revision/latest/scale-to-width-down/185?cb=20251025072816)







