| Achievement | How to unlock
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| Activate your senses | Open the door of your senses.
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| Lethe | Reach the end of the path without the fragments.
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| Mnemosyne | Reach the end of the path with the fragments.
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| Open your mind | Open the door of your mind.
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| Path to Mnemosyne | Open the way to Mnemosyne.
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| Rebuild your memories 1 | Unlock the first flashback.
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| Rebuild your memories 2 | Unlock the second flashback.
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| Rebuild your memories 3 | Unlock the third flashback.
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| Rebuild your memories 4 | Unlock the fourth flashback.
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| Rebuild your memories 5 | Unlock the fifth flashback.
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| Rebuild your memories 6 | Unlock the sixth flashback.
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| What are these fragments? | Find the first hidden fragment.
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