Here is the full list of all 64 La-Mulana achievements.
Completed the adventure.
Completed the entire adventure within 40 hours.
Filled every item slot.
Obliterated all guardians in HARD MODE
Called a fairy from every fairy point.
Obtained all M-SX software.
Obliterated all guardians.
Obliterated Tiamat.
Obliterated Palenque.
Obtained all Life Gems.
Obliterated Baphomet.
Obtained Beo La-Mulana.
Obtained all maps.
Learned ancient La-Mulana words.
The Twin Labyrinth has opened.
Unlocked all fairy locks.
Challenge the balance of the spirits
Obtained the Ocarina of The Philosophers.
Obtained La-Mulana.
Opened the entrance to The Gate of Time.
Obliterated Zu without using the Lamp of Time.
Bathed in the hot springs 100 times.
Obliterated Viy.
Surprised Shunderia.
Proved that you are indeed small.
Took a knee.
Obliterated Bahamut.
Obtained Future Development Company
Revealed Eden.
Obtained the Wing
Obliterated Elmac.
Obliterated Sakito.
Mulbruk awakens.
Dived into a pot.
Obliterated Amphisbaena.
Got the cooperation of a fairy.
Started HARD MODE.
I warned you.
Received damnation.
Opened the entrance to La-Mulana.
Completed the entire adventure within 20 hours.
Completed the entire adventure within 10 hours.
Opened all small treasure boxes.
Got all emails.
Listened to everything Mulbruk has to say.
Listened to everything Xelpud has to say.
Scanned all suspicious spots.
Bought something other than "Rose & Camellia" from the reformed merman.
Unlocked the HELL TEMPLE.
Completed the HELL TEMPLE.
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.
Opened the backdoor to the Tower of the Goddess.
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.
Smooshed by a Super Punch.