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