Challenge Accepted
Completed level 1 of all non-level-specific challenges with a single character
Gold/30 Gamerscore
Goliath, Meet David
Allowed a Goliath to level up four times before k**ing him
Bronze/15 Gamerscore
Went Five Rounds
Completed Round 5 of any Circle of Slaughter
Bronze/25 Gamerscore
Not Quite Dead
Reach Level 5
Bronze/5 Gamerscore
Better Than You Were
Reach Level 10
Bronze/10 Gamerscore
Always Improving
Reach Level 25
Silver/25 Gamerscore
Capped Out…For Now
Reach Level 50
Silver/50 Gamerscore
Arctic Explorer
Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon
Bronze/15 Gamerscore
Urban Explorer 15
Discovered all named locations in Sanctuary, Opportunity, and Lynchwood
Bronze/15 Gamerscore
Highlands Explorer 15
Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve
Bronze/15 Gamerscore
Blight Explorer 15
Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron
Bronze/15 Gamerscore World Traveler 50
Discovered all named locations
Silver/50 Gamerscore
Sugar Daddy
Tip Moxxi $10,000
Bronze/10 Gamerscore Decked Out 25
Had Purple-rated gear or better equipped in every slot
Sabre Rattler
k** 100 enemies with the Sabre turret
Bronze/20 Gamerscore Phased and Confused 20
Phaselocked 100 enemies So Much Blood!
Gunzerked continuously for 90 seconds
Bronze/20 Gamerscore Cute Loot 15
k**ed a Chubby
Bronze/15 Gamerscore
Tribute To A Vault Hunter
Got an item from Michael Mamaril
Bronze/15 Gamerscore
Definitely An Italian Plumber
k**ed Donkey Mong
Bronze/15 Gamerscore High-Flying Hurler
k**ed a flying enemy with a thrown Tediore weapon
Bronze/10 Gamerscore Token Gesture
Redeemed 25 tokens
Bronze/20 Gamerscore
Unseen Predator
Remained in Zero's Deception mode for ten seconds straight
Bronze/20 Gamerscore Build Buster
k**ed a Constructor without it ever building another bot
Bronze/20 Gamerscore How Do I Look?
Unlocked 10 customization items
Bronze/25 Gamerscore Friendship Rules
Revived someone from "Fight for Your Life!" that is on your friends list
Bronze/10 Gamerscore
Better Than Money
Purchased 5 items from the black market
Bronze/15 Gamerscore Up High, Down Low
Gave Claptrap a high five
Bronze/15 Gamerscore Bounty Hunter
Completed 20 side missions
Bronze/25 Gamerscore Did It All
Completed all side missions
Bronze/40 Gamerscore Secret Achievements First One's Free
Completed the mission "My First Gun"
Bronze/10 Gamerscore Dragon Slayer
Completed the mission "Best Minion Ever"
Bronze/20 Gamerscore A Road Less Traveled
Completed the mission "The Road To Sanctuary"
Bronze/20 Gamerscore New In Town
Completed the mission "Plan B"
Bronze/20 Gamerscore An Old Flame
Completed the mission "Hunting The Firehawk"
Bronze/20 Gamerscore No Man Left Behind
Completed the mission "A Dam Fine Rescue"
Bronze/20 Gamerscore Wilhelm Screamed
Completed the mission "A Train To Catch"
Bronze/20 Gamerscore Sky's The Limit
Completed the mission "Rising Action"
Bronze/20 Gamerscore Can See My House From Here
Completed the mission "Bright Lights, Flying City"
Bronze/20 Gamerscore Farewell, Old Girl
Completed the mission "Wildlife Preservation"
Bronze/20 Gamerscore Got The Band Back Together
Completed the mission "The Once and Future Slab"
Bronze/20 Gamerscore Identity Theft
Completed the mission "The Man Who Would Be Jack"
Silver/20 Gamerscore An Angel's Wish
Completed the mission "Where Angels Fear To Tread"
Silver/25 Gamerscore Bombs Away
Completed the mission "Toil And Trouble"
Silver/20 Gamerscore Knowing Is Half The Battle
Completed the mission "Data Mining"
Silver/20 Gamerscore Cool Story, Bro
Defeated Jack
Gold/30 Gamerscore
What does it mean?
I can't even capture it on my camera
Bronze/15 Gamerscore
Well That Was Easy
Completed the mission "Shoot This Guy in the Face"
Bronze/10 Gamerscore Thresher Thrashed
Defeated Terramorphous the Invincible
Silver/30 Gamerscore Feels Like The First Time
Opened the chest at the bus stop in Fyrestone
Bronze/10 Gamerscore DLC Captain Scarlett and Her Pirate's Booty Treasure Hunter
Complete the mission "X Marks the Spot"
Gold/75 Gamerscore Gadabout
Discover all named locations in Oasis and the surrounding Pirate's Booty zones
Bronze/25 Gamerscore Completionist
Complete all Pirate's Booty side missions
Silver/25 Gamerscore Mister Torgue's Campaign of Carnage Explosive
Complete the mission "Long Way To The Top"
Bronze/40 Gamerscore Motorhead
Complete all Campaign of Carnage side missions
Silver/40 Gamerscore Obsessed
Collect 10 pictures of Moxxi in Campaign of Carnage
Gold/45 Gamerscore Sir Hammerlock's Big Game Hunt Face Off
Completed the mission: "The Fall of Nakayama"
Bronze/40 Gamerscore Done That
Completed all Hammerlock's Hunt side missions
Gold/40 Gamerscore Been There
Discovered all named locations in Hammerlock's Hunt
Silver/45 Gamerscore Tiny Tina's Assault on Dragon Keep I Totes Planned That Boss
Slay Mister Boney Pants Guy
Bronze/10 Gamerscore Yaaaaaay
Introduce thyself to the White Knight
Bronze/25 Gamerscore Shorty, You So Best
Complete thy quest by rescuing yonder queen
Silver/60 Gamerscore Girl's Gotta Eat
Feed thy noble queen 3 times during one visit to her quarters
Bronze/15 Gamerscore It's Like That One Video
Show thine worst enemy, the abomination known as "The Darkness," who is the nerdiest of them all
Bronze/10 Gamerscore They Was All "Hey That's Mine"
Unsheath 5 swords from Immortal Skeletaurs without leaving the area
Bronze/20 Gamerscore Dang Girl You Ace At This Game
Win the most challenging round in Murderlin's Temple
Silver/30 Gamerscore Hmmmmm
Wield the Mysterious Amulet
Bronze/15 Gamerscore Keep Rollin' Rollin' Rollin'
Demonstrate your sk**, or lack thereof, at rolling the magical treasure orb of many sides
Bronze/15 Gamerscore Make it Raaaaaid
Vanquish the Ancient Dragons of Destruction
Silver/50 Gamerscore