Mortal Sin

Mortal Sin

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Mortal Sin - Unlocks
By oinkratpig
Spoilers! (Last updated after 4/1/2023 update)
   
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List of Unlock Types
(click to enlarge image)

Blue = Weapon / Passive Skill
Red/Pink = Permanent combo upgrade
Yellow = Starting area upgrade (shops, etc.)
Green = Permanent progression path
Orange = Game mechanic
Dungeon (A)
Dungeon A-2
(Weapon) Halberd : A deadly weapon with superior range.

Dungeon A-3
(Combo) Whirlwind : Hold attack and release to perform a Whirlwind.

Dungeon A-4
(Starting Area Upgrade) Crafting Anvil : You can now craft powerful weapons and equipment in the starting area.

Dungeon A-5
(Progression) Trial of Resolve : You have proven your worth! You may attempt the Trial of Resolve in the starting area.

Note : Both Dungeon A-5 and Cave A-5 must be completed to unlock the Trial of Resolve.
Dungeon (B)
Dungeon B-2
(Game Mechanic) Vitality Overwhelming : Consuming Health Potions will make you invulnerable temporarily.

Dungeon B-3
(Combo) Crescent Moon : Combo Kick -> Thrust -> Swing for a Power Strike.

Dungeon B-4
(Starting Area Upgrade) Demonic Tutor : You can now purchase skill upgrades in the starting area for a high cost.

Dungeon B-5
(Progression) Forest : Explore the Forest in the starting area.

Note : Completing either Dungeon B-5 or Cave B-5 will unlock the Forest permanently.
Dungeon (C)
Dungeon C-2
(Game Mechanic) Focused Strike : Thrusting Attack and Infinity Blade deal more damage.

Dungeon C-3
(Combo) Power Kick : Combo Unarmed Bash or Punch to Kick for greatly increased damage and knockback. You are invulnerable during Power Kick.

Dungeon C-4
(Game Mechanic) Minor Essence Retention : +5000 max essence retention between runs.

Dungeon C-5
(Combo) Sleight of Hand : Combo Unarmed Bash -> Punch -> Equip Weapon -> Swing to unleash Whirlwind.
Cave (A)
Cave A-2
(Weapon) Spectral Mace : Slams enemies from a great distance.

Cave A-3
(Combo) Tempest : Combo Kick -> Bash -> Swing to unleash Whirlwind.

Cave A-4
(Starting Area Upgrade) Potion Shop : You can now purchase Health Potions and Wizard Oils in the starting area.

Cave A-5
(Progression) Trial of Resolve : You have proven your worth! You may attempt the Trial of Resolve in the starting area.

Note : Both Dungeon A-5 and Cave A-5 must be completed to unlock the Trial of Resolve.
Cave (B)
Cave B-2
(Game Mechanic) Power Overwhelming : Consuming Wizard Oils will increase your damage temporarily.

Cave B-3
(Combo) Whirling Dervish : Combo Bash -> Kick -> Thrust -> Swing to unleash Whirlwind.

Cave B-4
(Starting Area Upgrade) Sinful Offering : You can now increase your stats in the starting area for a high cost.

Cave B-5
(Progression) Forest : Explore the Forest in the starting area.

Note : Completing either Dungeon B-5 or Cave B-5 will unlock the Forest permanently.
Cave (C)
Cave C-2
(Helmet Passive Skill) Manifest Weapon : Every 5 hit combo summons a rotating axe.

Cave C-3
(Combo) Retaliation : You can now unleash Whirlwind after a Perfect Parry.

Cave C-4
(Game Mechanic) Minor Essence Retention : +5000 max essence retention between runs.

Cave C-5
(Combo) Edge of Madness : Combo Bash -> Swing -> Bash -> Kick -> Thrust -> Swing to unleash Whirlwind and a devastating blast.
Forest (A)
Forest A-2
(Weapon) Hammer : A slow but powerful weapon that can hit multiple enemies.

Forest A-3
(Combo) Eye of the Storm : Combo Whirlwind (after at least one spin) into a Thrusting Attack.

Forest A-4
(Game Mechanic) Parting Gift : Scares may drop treasure when you avoid their grasp.

Forest A-5
(Weapon) Mortal Coil : Summons a slow moving skull that pierces enemies.
Forest (B)
Forest B-2
(Game Mechanic) Major Essence Retention : +10,000 max essence retention between runs.

Forest B-3
(Combo) God Hand : Combo Unarmed Bash -> Punch -> Punch -> Unarmed Bash to unleash a devastating blast.

Forest B-4
(Game Mechanic) Quick Step : Boosts Passive Skill. Increased dash distance.

Forest B-5
(Weapon) Soul Lance : Fires a soul piercing beam.
Forest (C)
Forest C-2
(Chestplate Passive Skill) Sin Ward : Summons a rotating cross while equipped.

Forest C-3
(Combo) Spell Weave : Combo Kick -> Cast Spell to launch a Waveblade.

Forest C-4
(Game Mechanic) Minor Essence Retention : +5000 max essence retention between runs.

Forest C-5
(Combo) Sinner's Respite : Combo Kick -> Thrust -> Kick -> Bash -> Kick -> Thrust to unleash a devastating blast.
Trial of Resolve
A

(Game Mechanic) Infinity Blade : Hold during a Thrusting Attack to continue thrusting at reduced power.

B

(Weapon) Two Hundred Man Slayer : When One Hundred Man Slayer is not enough...

C

(Combo) Double Strike : Combo Bash -> Swing -> Thrust
Maw of Sin
(Progression) Hard Mode : You have proven your worth. Now you will know true pain.

Note : Hard Mode, also known as the Path of Torment, is an alternative difficulty that has its own set of unlocks. They are the same as the default difficulty, but everything will have to be re-unlocked.

Secret Ending

(Weapon) Sinblade : Let your hatred fuel this blade.
9 Comments
Fi'We 30 Aug @ 11:07am 
i dont get it. Hard mode gives same unlocks?
LR-89.mz 19 Nov, 2024 @ 10:31am 
You have to beat all 4 Trial of Resolve, there's also one after the final boss.
Clowner 16 Nov, 2024 @ 8:28pm 
Trial of Resolve 3 achievement is bugged, beat it on hardmode and didnt get
Fishpoon 9 Jul, 2024 @ 4:56pm 
Noice
Lain½ 17 Jun, 2024 @ 3:05pm 
It's a nice guide,
Even though I already unlocked everything, I did not know about the secret ending though, I'll have to try that !
oinkratpig  [author] 16 Mar, 2024 @ 2:52am 
<3 thank you
Fleet Admiral Crunch 15 Mar, 2024 @ 10:09pm 
i glanced this over and it has given me much more motivation to beat the game and understanding of what i unlocked so i really appreciate this guide
oinkratpig  [author] 4 Mar, 2024 @ 8:42pm 
it has a decent amount of views, so more than we both expected
BOB123123 2 Mar, 2024 @ 12:14am 
Uh who reads this?