Here is the full list of all 64 La-Mulana achievements.
Surprised Shunderia.
Completed the adventure.
Completed the entire adventure within 40 hours.
Filled every item slot.
Called a fairy from every fairy point.
Unlocked all fairy locks.
Smooshed by a Super Punch.
Got all emails.
Unlocked the HELL TEMPLE.
Obtained all M-SX software.
Obliterated all guardians.
Obliterated Tiamat.
Obliterated Baphomet.
Obtained all Life Gems.
Obtained Beo La-Mulana.
Obtained all maps.
Obliterated Palenque.
Learned ancient La-Mulana words.
Challenge the balance of the spirits
Obtained the Ocarina of The Philosophers.
Found every NIGORO staff member.
Obliterated Viy.
Obtained La-Mulana.
Opened the backdoor to the Tower of the Goddess.
Opened the entrance to The Gate of Time.
The Twin Labyrinth has opened.
Bathed in the hot springs 100 times.
Proved that you are indeed small.
Took a knee.
Obliterated Zu without using the Lamp of Time.
Obtained Future Development Company
Revealed Eden.
Obliterated Bahamut.
Obtained the Wing
Obliterated Elmac.
Got the cooperation of a fairy.
Obliterated Sakito.
Flattened by a falling giant.
Dived into a pot.
Mulbruk awakens.
Squashed by a falling sun.
Started HARD MODE.
I warned you.
Obliterated Amphisbaena.
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.
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.
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.
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.
Ate curry in a variety of situations.