Ultrakill has a really well documented development history, since every major change was uploaded to Hakita's (main developer and director) channel, from when it was just the title drop to sneak peeks of the next act, you can check out the entire development history using this playlist or this video conmemorating 5 years of development

Sprinkled around old streams and the in-game dev museum there are many cool facts about the game's development; after 5 years of developments it's expected for things to not go the way some were expecting, some of the most interesting for me are

*People complained about the husk's AI being too simple and animalistic, but after changing the design to a more feral one, those complaints disappeared

*The malicious face originally had a mechanic where you could shoot it's eyes and blind it, that was scrapped, but the eyes kept on being sepparate objects

*Something wicked's model is made from a husk's skeleton

*Gianni Matragrano sends his thanks to gay people

Let there be known that i am in no way, shape or form a speedrunner or anything of that kind, i just thought that having this on here would be cool, and also a nice way to represent how much i love this game

Also, all these times are my P rank times on Violent dificulty with the (as of now) complete arsenal

0-1 INTO THE FIRE	1:26.015	Nice introductory level, short, concise, and showcases almost everything you're gonna encounter
0-2 THE MEATGRINDER	1:33.539	Great presentation of swordsmachine as an intimidating foe
0-3 DOUBLE DOWN	1:55.237	The great parry barrier for new players, really helps you on starting getting used to it
0-4 A ONE MACHINE ARMY	1:02.612	Excellent level to test out the shotgun, plus an indication that yes, bosses from older levels may appear
0-5 CERBERUS	0:54.870	The closure of the prelude and an intense bossfight with only the pistol and the shotgun, can't imagine how it would've felt if you didn't see the twist coming

1-1 HEART OF THE SUNRISE	2:10.463	This level is the game telling you "Don't worry, this isn't quake, not all levels are gonna be grimy factories"
1-2 THE BURNING WORLD	2:23.951	Has probably one of my favorite tracks in the game, and i also like how the game flips the entire aesthetic from pleasing and calming to decrepit and burnt down
1-3 HALL OF SACRED REMAINS	5:20.328	Wouldn't you know it this one also has one of my favorite tracks,and if you wonder why the time is so long compared to the others, buy the game and play it, you'll see
1-4 CLAIR DE LUNE	0:53.844	The boss level, a boss designed to be a wall for new players, but with a little experience (and knowledge about a certain exploit) you can beat it in no time

2-1 BRIDGEBURNER	2:23.033	The start of probably my favorite layer as of now, although i gotta admit it's a pretty weak start, not much going on in here
2-2 DEATH AT 20,000 VOLTS	2:47.874	My favorite level, hands down; the atmosphere, the music, the new gun, the setting, it does everything wonderfully
2-3 SHEER HEART ATTACK	3:37.477	Fuck the mindflyers
2-4 COURT OF THE CORPSE KING	2:11.297	The boss is more for show than for challenge, but that's in no way a bad thing at all

3-1 BELLY OF THE BEAST	4:03.912	Love the Escher stairwell and the final segment, the rest of the level is kinda bland in my opinion
3-2 IN THE FLESH	1:07.935	Ah Gabriel, a neat boss fight to put you on your toes, a test of your mastery of the game's movement

4-1 SLAVES TO POWER	2:57.626	The room that introduces the dual-weild powerup is the peak of the level, and the new enemy is really neat too
4-2 GOD DAMN THE SUN	3:29.965	My least favorite level, it does a cool thing with the two skulls but it feels really empty and barren (i know it's a desert level but yeah)
4-3 A SHOT IN THE DARK	3:37.477	A level with quite an original idea, i really really love the last room
4-4 CLAIR DE SOLEIL	1:51.399	Oh i love this rematch, it's as if Hakita saw the strategies new players were using and went "yeah it can do that too now"

5-1 IN THE WAKE OF POSEIDON	5:40.279	They made the water level good
5-2 WAVES OF THE STARLESS SEA	3:49.259	Probably has one of my favorite mid-bosses in the game
5-3 SHIP OF FOOLS	6:26.797	I absolutely love what this level does with flipping it entirily, and the dual-weild room can change a man
5-4 LEVIATHAN	1:11.065	Unchanged from 2-4

6-1 CRY FOR THE WEEPER	4:43.168	If i could have one absolutely egotistical wish it would be to play that last room for the first time again
6-2 AESTHETICS OF HATE	0:52.456	Another rematch, and another really cool one at that, even after everything else i've been through i still struggle with it

7-1 GARDEN OF FORKING PATHS	---	---
7-2 LIGHT UP THE NIGHT	---	---
7-3 NO SOUND, NO MEMORY	---	---
7-4 ...LIKE ANTENNAS TO HEAVEN	---	---

8-1 ---	---	---
8-2 ---	---	---
8-3 ---	---	---
8-4 ---	---	---

9-1 ---	---	---
9-2 ---	---	---

P-1 SOUL SURVIVOR	3:04.344	I love this fight so much, the voice lines, the music, everything; shame that the pre fight is trickier
P-2 WAIT OF THE WORLD	---	One day
P-3 ---	---	---

As you can probably see, i really really like this game; the gameplay, the story, the characters, everything

Everyone already talked about how good the gameplay is, and when you actually go and try it out it's as good as everyone says, sometimes even better, Ultrakill is definetly a game i reccomend to everyone

and if you already did