Here is the full list of all 15 Blaster Master Zero achievements.
See the true ending on Destroyer Mode.
Clear Boss Blaster Mode.
See the true ending.
Obtain every key item.
See the normal ending.
Defeat the boss of Area 8.
Defeat the boss of Area 7.
Defeat the boss of Area 7 with a FULL ACCELERATION BLAST.
Defeat the boss of Area 6.
Defeat the boss of Area 5.
Defeat the boss of Area 4.
Defeat the boss of Area 3.
Summon SOPHIA-III from a retry point.
Defeat the boss of Area 2.
Defeat the boss of Area 1.