Here is the full list of all 27 Mandinga - there are A Tale of Banzo achievements.
Get the items hidden in the bush during the night's search for Ayomide.
Defeat Lucas and save Obadelê.
Find the safe place inside the cave.
Find the secret chest inside the cave.
Win the fight against the young ounce.
Win the fight against the two mercenaries.
Win the fight against the Djinns.
Barter with someone for the first time.
Win the fight against Thiago.
Win the fight against Matthias on the way out of Salvador.
Find the old sage.
Talk and help people in the city of Salvador.
Win the battle against Bakari.
Win the battle against Ifrit.
Get the accessories: Words of Power, Words of Healing, Words of Clarity, Words of Fury
Free the Indians from the mercenaries.
Find Exú.
Retrieve and deliver the Shango's Edun-Ara.
Find Oxossi in the magic forest.
Win the battle against the overseers'ambush.
Find the hidden entrance in the dense forest.
Win the battle against alligators.
Win the battle against Bakari and Oumar.
Win the battle against the Bush Captain.
Win the final battle against Gaspar and Matthias.
Find the Excalibur and Ultima Necklace items.
Defeat Lucas' first two overseers with Obadelê.