Here is the full list of all 34 Mary Skelter: Nightmares trophies - there are 20 bronze, 7 silver, 6 gold and 1 platinum.
Obtained all Trophies!
Cleared the Underground Jail area.
Blood Devolution reached Level 80.
Unlocked the Good Ending.
Cleared the Jail Tower.
Unlocked the Bad Ending.
Completed 80% of the Jail Creature Manual.
Cleared the Station Grounds area.
Defeated 6 Nightmares.
Raised all heroines' affection to max level.
Hameln joined your party.
Gained the Blood ability Mary Reverser.
Cleared the Waterside area.
Cleared 50% of the work orders.
Activated a Blood Ability 100 times.
Cleared the Dorm area.
Unlocked all of the heroines' jobs.
Cleared the Downtown area.
Collected 100,000 Gold.
Cleared the Temple area.
Conducted Purge for the first time.
Cleared the Graveyard area.
Raised one heroine's affection to max level.
Cleared 10 work orders.
Satisfied the Jail's Sleep.
Matured a floor.
Satisfied the Jail's Libido.
Protected the heroine 100 times.
Entered Blood Skelter mode for the first time.
Filled the Jail Creature Manual with 10 creatures.
Cleared the City Streets area.
Entered a hidden floor.
Satisfied the Jail's Hunger.
Entered Massacre mode for the first time.