Challenge Accepted
Not unlocked yetCompleted level 1 of all non-level-specific challenges with a single character.
Goliath, Meet David
Not unlocked yetAllowed a goliath to level up four times before killing him.
Went Five Rounds
Not unlocked yetCompleted Round 5 of any Circle of Slaughter.
Always Improving
Not unlocked yetReached level 25.
Capped Out... For Now
Not unlocked yetReached level 50.
Arctic Explorer
Not unlocked yetDiscovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
Urban Explorer
Not unlocked yetDiscovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Highlands Explorer
Not unlocked yetDiscovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Blight Explorer
Not unlocked yetDiscovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
World Traveler
Not unlocked yetDiscovered all named locations.
Decked Out
Not unlocked yetHad Purple-rated gear or better equipped in every slot.
Sabre Rattler
Not unlocked yetKilled 100 enemies with the Sabre turret.
Phased and Confused
Not unlocked yetPhaselocked 100 enemies.
So Much Blood!
Not unlocked yetGunzerked continuously for 90 seconds.
Cute Loot
Not unlocked yetKilled a Chubby.
Tribute To A Vault Hunter
Not unlocked yetGot an item from Michael Mamaril.
Definitely An Italian Plumber
Not unlocked yetKilled Donkey Mong.
High-Flying Hurler
Not unlocked yetKilled a flying enemy with a thrown Tediore weapon.
What does it mean?
Not unlocked yetI can't even capture it on my camera.
Unseen Predator
Not unlocked yetRemained in Zero's Decepti0n mode for ten seconds straight.
Build Buster
Not unlocked yetKilled a Constructor without it ever building another bot.
Well, That Was Easy
Not unlocked yetCompleted the mission "Shoot This Guy in the Face".
Thresher Thrashed
Not unlocked yetDefeated Terramorphous the Invincible.
Up High, Down Low
Not unlocked yetGave Claptrap a high five.