| Achievement | How to unlock
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| Blade Master | Kill twenty enemies with the blade.
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| Easy Mode - Bronze Achievement | Finish the game on Easy difficulty.
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| Expert at wasting ammo | Known for using more bullets than necessary, leaving no ammo spared.
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| Hard Mode – Gold Achievement | Complete the game on Hard difficulty.
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| Heart of Steel | Completed the game without using any health injections.
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| Master Swimmer | Never die while swimming.
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| Normal Mode – Silver Achievement | Complete the game on Normal difficulty.
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| Not Alone | Adam directly helped you, proving you're never truly alone.
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| Poor Adam | Let Adam die more than twenty times.
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| Quick Thinker | Finish a puzzle in record time.
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| The Conqueror | Complete the game on Hard Mode without dying during regular gameplay.
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| Untouchable | Defeat any boss on your first try without dying.
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