| Achievement | How to unlock | Points
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| - Unlocked all achievements.
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- Romeo is a Blasphemous man
| - Defeated the "Conflict" chapter boss.
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| - Recovered all of your HP using Bloody Summer.
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| - Defeated a boss without taking any damage.
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| - Spoke to every member of the Space-Time Police.
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| - Expanded your garden to the max.
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| - Defeated the "Existence" chapter boss.
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| - Made all types of katsu curry.
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| - Defeated a total of 500 enemies.
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| - Retrieved 1000 space debris.
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| - Defeated at least four enemies at once using Bastards.
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| - Maximized all parameters for one weapon.
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- Romeo is a Man of Television
| - Accessed a Nirvana TV for the first time.
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| - Defeated a total of 1000 enemies.
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| - Maximized all of Romeo's parameters.
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| - Defeated a total of 100 enemies.
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| - Defeated the "Atonement" chapter boss.
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| - Afflicted by status ailments ten times.
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| - Cleared Boss Rush in the Room of Trials.
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| - Cleared Palace Athene on all danger levels.
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| - Cleared Palace Athene for the first time.
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| - Defeated the "Hubris" chapter boss.
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| - Destroyed 100 weak spots.
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| - Acquired 100,000 Emerald Flowsion.
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| - Defeated the "Embers" chapter boss.
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| - Defeated at least three enemies at once.
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| - Defeated an enemy with Death Conversion.
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| - Took on the Room of Trials ten times.
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| - Ate the orange chocolate or above and cleared the game.
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| - Got married in space-time.
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| - Said goodbye to a Bastard.
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| - Acquired all Field Notes.
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| - Defeated an enemy while suffering from the Weak Knees status ailment.
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- Romeo is an Ascendant Man
| - Defeated the "Transience" chapter boss.
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| - Defeated all bosses twice each in any mode.
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| - Suffered damage from an exploding metal barrel.
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| - Defeated the "Reinvention" chapter boss.
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