Revive 10 players with oxygen.
Reach level 10.
Win a duel.
Reach level 5.
Unlock 10 Customization Items.
Complete 30 side missions.
Complete all of the side missions.
Use the Grinder to create an item.
Defeat the Invincible Empyrean Sentinel.
Kill 100 enemies with Wolf.
Kill 100 enemies with the Aspis.
Experience all Vault Hunter Modes using Vault Hunter.EXE.
Kill 10 enemies in a single activation of Showdown.
Have Purple-rated gear or better equipped in every slot.
Complete level 1 of all challenges with a single character.
Reach level 25.
Reach level 50.
Try all the Moxxtails in the Up Over bar in Concordia.
Loot 10 Moonstone Chests.
Discover all named locations in Serenity's Waste, Triton Flats and Stanton's Liver.
Discover all named locations aboard the Helios Space Station.
Discover all named locations in Outlands Canyon, Outlands Spur and Vorago Solitude.
Discover all named locations.
Have a Lost Legion Eternal kill 3 of his friends.
While airborne, spin 360 degrees then get a kill with a Sniper Rifle without using the scope.
Use the Grinder to create a Legendary item.
Shatter 3 frozen enemies with a single slam attack.
Have an enemy frozen, corroded, ignited, and electrocuted at the same time.
Pancake an enemy in the Stingray.
Suffocate for 5 continuous minutes without dying.
Complete all 5 rounds of The Holodome.
Complete the Badass Round of The Holodome.
Complete the Badass Round without going into Fight For Your Life.
Kill 10 SpyBugs before they take your photo.
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