Ouroboros
10
Ouroboros is an achievement in Halo: The Master Chief Collection. It is unlocked by beating the 25 minute par time on the level Infinity. The achievement is worth 10 Gamerpoints and can be unlocked on any difficulty.
Trivia
The ouroboros is an ancient symbol depicting a serpent or dragon eating its own tail. It represents cyclicality, or infinity.
Achievements in Halo: The Master Chief Collection (list)
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Halo: Combat Evolved Anniversary
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Campaign completion
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Campaign scoring
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Collectibles
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Easter eggs
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Miscellaneous
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Halo 2: Anniversary campaign
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Campaign completion
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Campaign scoring
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Collectibles
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Easter eggs
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Miscellaneous
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Halo 2 Anniversary multiplayer
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BLAST Soda
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Halo 3
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Campaign completion
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Campaign scoring
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Collectibles
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Easter eggs
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Miscellaneous
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Halo 3: ODST
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Campaign completion
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Campaign scoring
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Collectibles
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Easter eggs
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Miscellaneous
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Halo 4
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Campaign completion
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Campaign scoring
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Collectibles
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Easter eggs
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Miscellaneous
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Halo: Reach
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Campaign completion
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Campaign time
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Campaign score
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Collectibles
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Easter eggs
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Miscellaneous
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