Here is the full list of all 64 La-Mulana achievements.
Unlocked all fairy locks.
Obtained all maps.
Completed the adventure.
Completed the entire adventure within 40 hours.
Completed the entire adventure within 20 hours.
Completed the entire adventure within 10 hours.
Obtained all M-SX software.
Obliterated all guardians.
Obliterated Baphomet.
Obliterated Tiamat.
Obtained all Life Gems.
Obtained Beo La-Mulana.
Learned ancient La-Mulana words.
Obliterated Palenque.
Obliterated Viy.
Obliterated Zu without using the Lamp of Time.
Obtained La-Mulana.
Challenge the balance of the spirits
Obtained the Ocarina of The Philosophers.
The Twin Labyrinth has opened.
Dived into a pot.
Opened the backdoor to the Tower of the Goddess.
Opened the entrance to The Gate of Time.
Obliterated Amphisbaena.
Obtained Future Development Company
Obliterated Sakito.
Proved that you are indeed small.
Took a knee.
Revealed Eden.
Obtained the Wing
Obliterated Elmac.
Mulbruk awakens.
Bought something other than "Rose & Camellia" from the reformed merman.
Obliterated Bahamut.
Got the cooperation of a fairy.
Received damnation.
I warned you.
Opened the entrance to La-Mulana.
Bathed in the hot springs 100 times.
Filled every item slot.
Opened all small treasure boxes.
Called a fairy from every fairy point.
Got all emails.
Listened to everything Mulbruk has to say.
Listened to everything Xelpud has to say.
Scanned all suspicious spots.
Unlocked the HELL TEMPLE.
Completed the HELL TEMPLE.
Obliterated all guardians in HARD MODE
Watched the ending with the entire cast present.
Everyone in the ending has that summer feeling.
Everyone's here, but only you feel like it's summer.
Started HARD MODE.
Survived the 3rd infinite corridor under your own power.
Completed the HELL TEMPLE in HARD MODE.
Completed the HELL TEMPLE without the Fairy's Vest.
Obliterated all guardians without using secondary weapons.
Obliterated all guardians without using secondary weapons in HARD MODE.
Found every NIGORO staff member.
Ate curry in a variety of situations.
Flattened by a falling giant.
Squashed by a falling sun.
Surprised Shunderia.
Smooshed by a Super Punch.