Here is the full list of all 44 KINGDOM HEARTS Melody of Memory achievements worth 1,000 gamerscore.
Defeat 100,000 enemies.
Clear all songs on Beginner.
Find 100 treasure chests.
Clear 50 songs with a Full Chain on Beginner.
Obtain 10,000 items from Music Stages.
Clear 50 songs on Beginner.
Defeat 50,000 enemies.
Clear all songs on Standard.
Clear 50 songs with a Full Chain on Standard.
Clear 50 songs with a Full Chain on Proud.
Play the same Music Stage 10 times.
Play all songs.
Clear all songs on Proud.
Fight alongside King Mickey for an hour.
Reach the highest level with Team Classic.
Use 100 items.
Collect 50,000 Rhythm Points.
Achieve a total score of 2,000,000,000.
Clear 50 songs on Proud.
Spend one minute or more gliding in a Field Battle Music Stage.
Clear all five of Today's Tunes with a Full Chain.
Synthesize 100 items.
Get the moogle to the highest level.
Defeat 20 COM opponents.
Reach Platinum 1 rank in COM Battle.
Clear all songs in all worlds.
Earn 2,000 EXP or more in one song.
Clear the game and view the ending.
Unlock all Story Archive movies.
Clear all songs in 50 worlds.
Play 100 Music Stages.
Defeat 10,000 enemies.
Use every team at least once.
Clear 50 songs on Standard.
Clear all songs in 30 worlds.
Achieve a total score of 500,000,000.
Attack the same enemy 19 times or more throughout one song.
Complete all missions in 10 worlds.
Clear a Boss Battle Music Stage.
Get a Full Chain.
Clear all songs in 10 worlds.
Hit 100 friend orbs.
Defeat a COM opponent.
Clear all songs in a world.