Here is the full list of all 19 Blaster Master Zero 3 achievements.
Unlock all other achievement.
Defeat the Metal Attacker in the 1st Area.
Master the Gaia System.
Defeat the final boss as Kane.
Obtain every item.
See the true ending.
Defeat the final boss as Jason.
Defeat Rising Garuda.
Become a frequent user of the VRV system and acclimate to super-dimensional space.
See the normal ending.
Defeat the boss mutant in the Forbidden Sector.
Defeat the boss mutant on planet Stranga.
Defeat the boss mutant in the NORA Satellite Zone.
Defeat the boss mutant in the Mass Driver Facility.
Clear an SF dungeon in super-dimensional space.
Defeat the boss mutant in the Sophia Metropolis.
Activate the VRV system for the first time.
Use the warp feature at a retry point.
Battle against the Metal Attacker.