Full list of all 36 Adventure Time: Pirates of the Enchiridion achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Pull the plug!
Collect all other achievements.
Get Marceline to level 10.
Get Finn to level 10.
Get Jake to level 10.
Get BMO to level 10.
Beat Uncle Gumbald in battle.
Complete all side quests.
Use all the pirate lookouts.
Take all the penguins to the tree house.
Light all the braziers in the Fire Kingdom.
Beat the Fire Giant in battle.
Dock at all the islands.
Beat the Mother Varmint in battle.
Fall in to water more than 10 times.
Find Shelby the snail.
Inflict more than 1 bunk effect on to a single enemy.
Use BMO's "Analyze.exe".
Free the caged Mushroom people.
Unlock a gate with BMO.
Open 15 treasure chests.
Beat Fern in battle.
Beat 50 enemies in battle.
Win your first fight against a higher level enemy.
Restore light to the treasure tree.
Destroy 10 Sea destructibles.
Revive a hero.
Destroy 250 land destructibles.
Use a pirate lookout.
Complete your first side quest.
Buy your first item from the shop.
Destroy 50 land destructibles.
Fish out 25 items from the sea.
Win your first sea battle.
Overskronk 4 enemies in a single battle.
Pass the first Interrogation.