Slitterhead has a total of 42 Trophies (1 Platinum, 4 Gold, 9 Silver, 28 Bronze). Below you can find the full Slitterhead trophy list / achievement list.
Slitterhead Trophies
Slitterhead Legend Complete 
Acquired all trophies.
Edge of Madness 
Completed Prostitute chapter.
Last Echoes of Love 
Completed Cult chapter.
Loss of Causality 
Completed Nurse chapter.
Requiem for Michelle 
Vanquished Michelle, the Devil’s Flower Mantis Slitterhead.
Crucifix of Blood 
Defeated Lisa, the Mimic Octopus Slitterhead.
Empty Peace 
Sealed Lisa, the Mimic Octopus Slitterhead, away in the interstice of space-time.
The Cruelty of Yin Yue 
Vanquished Yin Yue, the Reef Stonefish Slitterhead.
Just One Consequence 
Killed Julee in the Omega world.
Timeline Collapse 
Defeated Alex in Alpha world.
Timeline Convergence 
Stopped Alex’s (Leopard Head’s) killing spree in the Alpha world.
Survival 
Managed to escape the monster in the back alley.
A Rare Encounter 
Julee joined you.
The Black Rider 
Alex joined you.
Neon Black Swan 
Anita joined you.
Drunken Angel 
Edo joined you.
Glass Teen 
Doni joined you.
The Houskeeper Sees 
Tri joined you.
The Turncoat Pierrot 
Blake joined you.
Friend of the Fairy 
Betty joined you.
Masquerade 
Collected all Rarity masks.
Fashionista 
Collected all Rarity costumes.
Total Recall 
Gathered all of the Hyoki’s memory fragments.
Shrine Robber 
Completed all Shrine trials.
Full Spec 
Got all Rarities to max skill level.
You Dropped Something 
Cut off a Slitterhead’s human parts for the first time.
Technique Enthusiast 
Successfully deflected 10 times.
Technique Expert 
Successfully deflected 100 times.
Technique Master 
Successfully deflected 200 times.
Focused 
Activated Blood 10 times.
Composed 
Activated Blood 30 times.
Clear and Serene 
Activated Blood 50 times.
New Hyoki Legend 
Cleared on Normal or higher difficulty.
True Hyoki Legend 
Cleared on Hard or higher difficulty.
Apex Hyoki Legend 
Cleared on Nightmare of higher difficulty.
Power of Blood 
Used Active Skills 10 times.
Jack of All Blood 
Used Active Skills 100 times.
Command of All Techniques 
Used all Active Skills.
Force Majeure 
Caused 100 civilian casualties.
Lion Among Wolves 
Defeated 20 Slitterheads.
Natural Enemy 
Defeated 50 Slitterheads.
Crimson Abyss 
Expended 100 liters of blood.
There is a trophy for beating the game on the highest difficulty ‘Nightmare’. Other than this the rest looks easy and mostly self-explanatory. We will also need all of the following collectible types: Rarity Masks, Rarity Costumes, Hyoki’s Memory Fragments, Shrine Trials.
What are your thoughts on the Slitterhead trophy list? Do you like what you see? Are you going for the Platinum?

Zengaku says
playing via early access through the deluxe edition and apparently you can change the difficulty at any time, I wonder if it is possible to get the difficulty trophies by just switching to the difficulty right before the end of the game
Mannstiere says
I thought the same and tried, but apparently no. It didn’t unlock anything after the final fight.
AS says
Will there be a trophy guide?
Lars says
Yes what happened to the guide?
PowerPyx says
We’ll skip this one.