Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron

Remained in Zero's Deception mode for ten seconds straight

Completed the mission "Data Mining"

Completed the mission "Toil And Trouble"

Allowed a Goliath to level up four times before killing him

Completed Round 5 of any Circle of Slaughter

Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve

Discovered all named locations in Sanctuary, Opportunity, and Lynchwood

Completed the mission "The Once and Future Slab"

Reached level 25

Gave Claptrap a high five

Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon

Heal yourself with a medkit 100 times.