Here is the full list of all 36 Adventure Time: Pirates of the Enchiridion achievements worth 1,000 gamerscore.
Pull the plug!
Unlock all Achievements in the game
Get Jake to level 10
Get Finn to level 10
Beat Uncle Gumbald in battle - hidden
Complete all side quests
Take all the penguins to the tree house
Get Marceline to level 10
Get BMO to level 10
Light all the braziers in the Fire Kingdom
Use all the pirate lookouts
Beat the Fire Giant in battle
Dock at all the islands
Beat the Mother Varmint in battle
Overskronk 4 enemies in a single battle
Find the snail
Restore light to the treasure tree
Use BMO's Analyze.exe
Free the caged Mushroom people
Unlock a gate with BMO
Fall in to water more than 10 times
Beat Fern in battle
Inflict more than 1 bunk effect on to a single enemy
Open 15 treasure chests
Revive a hero
Beat 50 enemies in battle
Destroy 10 Sea destructibles
Use a pirate lookout
Win your first fight against a higher level enemy
Complete your first side quest
Destroy 250 land destructibles
Destroy 50 land destructibles
Buy your first item from the shop
Fish out 25 items from the sea
Win your first sea battle
Pass the first Interrogation