| Achievement | How to unlock
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| Accordion | Scream cumulatively for 20 minutes during a save file.
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| Balloon Animal | Purchase a balloon and reach any exit elevator with it unpopped.
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| Beware the Jewel Ghoul! | Defeat Jewel Ghoul. Lust is a distraction most dangerous.
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| Burly Brawler Buried | Defeat Brawlbuster. Pride comes before the fall.
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| Cheap Fashion | Collect all the Spray Cans.
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| Combo King | Complete all the Combo Chain Trials.
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| Cool Tapes | Unlock all the cassette tapes.
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| Die-o-Rama | Subject the Duo to every variety of horrific death.
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| Dynamite Duo | Complete the adventure as both Anton and Annie to see both sides of the story.
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| Hey, Talking Bell! | Defeat Ring-a-Ding. Gluttony can apply to much more than the size of a meal.
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| I Am The Car | Take the display car for a spin around the concourse.
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| It's About Time | Beat all of the Par Times in Time Trial mode.
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| Just Girly Things | Recover all of Annie's mementos.
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| Motherly Maestro Martyred | Defeat Maulbuster. Wrath destroys indiscriminately.
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| Nina Sucks | Check your balance too often at Nina's.
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| Pop the Clutch | String together hundred Clutch Boosts.
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| Protracted Pacifist Punished | Defeat Tallbuster. Sloth kills ambition before it blooms.
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| Rude Awakening | Wake a certain Buster up from their nap.
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| Satanic Panic! | Defeat the Final Boss. The Devil Himself.
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| Shinobi Execution | Successfully parry a whole chain of three hammer swings during the final boss.
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| Tiny Technician Trashed | Defeat Smallbuster. Envy prevents one from appreciating their self.
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| Tritagonistic | "Collect" all 12.
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| What a Freak! | Defeat Freako Dragon. Greed can drive one to gamble away their sanity.
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