Here is the full list of all 29 Legend of Mana achievements.
Raised every type of produce.
Held over 100,000 lucre at one time.
Reached level 99.
Completed every entry in the encyclopedia.
Learned every Special Technique.
Played the game on "No Future" mode.
Read every entry in Li'l Cactus's diary.
Witnessed the ending for the first time.
Saw the game's ending after completing 67 events.
Witnessed the conclusion of events involving the jewel thief.
Reached level 50.
Witnessed the conclusion of events involving Bud and Lisa.
Witnessed the conclusion of events involving Niccolo.
Learned every Ability.
Reached level 30.
Held over 10,000 lucre at one time.
Witnessed the conclusion of events involving the Emperor of Dragons.
Stepped on 32 or more crabs in the crab bashing mini game.
Witnessed the conclusion of events involving the Faerie world.
Made an instrument for the first time.
Caught an Elemental Spirit for the first time.
Created a golem for the first time.
Made a piece of armor for the first time.
Made a weapon for the first time.
Reached level 10.
Raised an item of produce in an orchard for the first time.
Hatched a pet from a monster egg for the first time.
Read the first entry in Li'l Cactus's diary.
Placed the "Mailbox" artifact on the world map.