Ouroboros

Ouroboros

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[edit]

The ouroboros is an ancient symbol depicting a serpent or dragon eating its own tail. It represents cyclicality, or infinity.

v • d • e

Achievements in Halo: The Master Chief Collection (list)

v • d • e Halo 4

Campaign completion	Dawn • Requiem • Forerunner • Infinity • Reclaimer • Shutdown • Composer • Midnight • Librarian's Gift • Wake Up, John • I Need a Hero • The Legend of 117 • Lone Wolf Legend • Operation Completion • Departure • Artifact • Catherine • Didact's Hand • Memento Mori • Scattered • Invasion • Expendable • Key • Exodus • Feet First • Term of Enlistment • Hazard Pay • Icarus • Smooth Operator

Campaign scoring	Piece of Cake • Interloper • Raging in the Dark • Ouroboros • Gimme That • Shut. Down. Everything. • Symphony of Pain • Countdown • Easy As One Two Three • Gunslinger • Dark Fortress • Shadow of Sundered Star • Jungle Warfare • Librarian's Pet • Emergency Shutdown • Head Banging • Witching Hour • You Had it Coming

Collectibles	War • Lord of Admirals • Charum Hakkor • Flood • Knights • Justice • Cryptum • Terminus

Easter eggs	Digging up the Past • Roses vs Violets

Miscellaneous	A Long Time Ago • This is my Rifle, this is my Gun • Bros to the Close • Mortardom • Explore the Floor • Give Him the Stick • Chief, Smash! • You're No Chips • Naked Tyrant • Devotee • Chest of Gold • You're Joking • No One Left Behind • Knight in White Assassination • What Power Outage? • No Easy Way Out • Going International • Taste Test