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