Ouroboros

Ouroboros

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Halo: The Master Chief Collection

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 Gamerscore 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.