| Achievement | How to unlock
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| - Collect a plant in any level.
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| - Complete the "Two sides" level without using the grow action.
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| - Save the middle-left spirit in the "All for one" level.
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| - Complete the "Three Paths" level by only using the blow action.
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| - Complete "A Tree" level without any spirits dying against the spikes.
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| - Complete level 1 to 5 with perfect score.
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| - Complete level 6 to 20 with perfect score.
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| - Complete level 21 to 35 with perfect score.
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| - Complete level 36 to 42 with perfect score.
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| - Collect 30 plants in any completed level.
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| - Collect 60 plants in any completed level.
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| - Collect 100 plants in any completed level.
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| - Complete the "Downwards" level by only using the dig action.
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| - Complete "Cave Story" without using the 3 top-left spirits.
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