Here is the full list of all 19 Blaster Master Zero 3 achievements.
Unlock all other achievement.
Defeat the final boss as Kane.
See the true ending.
Defeat the final boss as Jason.
Defeat Rising Garuda.
Obtain every item.
See the normal ending.
Defeat the boss mutant in the Forbidden Sector.
Become a frequent user of the VRV system and acclimate to super-dimensional space.
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.
Master the Gaia System.
Defeat the Metal Attacker in the 1st Area.
Battle against the Metal Attacker.
Use the warp feature at a retry point.