Here is the full list of all 26 New Tales from the Borderlands achievements worth 1,000 gamerscore.
Complete Episode 1.
Complete Episode 2.
Complete Episode 3.
Complete Episode 4.
Complete Episode 5.
Finish the game with a good skateboard rating.
Collect every Vaultlander figure.
Obtain every cosmetic.
Obtain a cosmetic item.
Obtain a Vaultlander figure.
Win a Vaultlanders battle.
Win every Vaultlanders battle.
Complete a hack.
Perform a Super Science Slap.
Fail an action for the first time.
Get the money from Sink or Swim.
Spend the money from Sink or Swim.
Win a Vaultlanders battle using the Claptrap figure.
View every ending.
Watch the credits after finishing the game.
Wish for more tacos.
Reach a Tale Over for the first time.
Perform every background check.
Win the retro battle.
Summon the Sexy Intern.
Nail a perfect, sexy dance.