Here is the full list of all 40 SATAZIUS achievements.
Watched a replay.
Raced against death an instilled fear on a never-ending parade of pirates.
Pierced through the enemy lines with all your might.
Used the first of many, many continues.
Destroyed 4,000 enemies.
Collected 10 stars in 1 stage.
Practiced a stage.
Destroyed 2,000 enemies.
Got your first Game Over.
Survived a brutal assault against all odds.
Destroyed 500 enemies using any main weapons.
Destroyed 1,000 enemies.
Reached MAX power on a charge weapon.
Traversed through a massive onslaught.
Got your first score extend!
Destroyed 500 enemies using any sub weapons.
Mistakenly picked up a speed down item.
Destroyed 500 enemies.
Reached MAX power on a main weapon.
Reached MAX power on a sub-weapon.
Watched the Agano burn and launched a full scale vengeance!
Died for the first time.
Reached MAX speed.
Destroyed 100 enemies.
Blasted your way into the Heart of Satazius and successfully finished your suicidal mission.
Died at the hands of the Stage 1 boss's second form.
Inadvertently collided against an asteroid on Stage 2.
Got turned into a pile of molten metal by a certain massive stream of magma on Stage 3.
Received the gentle treatment of a deadly massive laser on Stage 4.
Smashed yourself against one of the closing gates on Stage 5.
Got crushed by certain walls on the final stage, effectively ruining your entire run.
Cleared Satazius on Normal difficulty or above.
Cleared Satazius using 1 credit on Normal difficulty or above.
Cleared a stage on Hard Difficulty and experienced the true SATAZIUS.
Cleared a stage on Insane Difficulty. You can go deeper!
Cleared Satazius using 1 credit on Easy Mode.
Unlocked all the weapons on Normal difficulty or above.
Used 10 continues through different game sessions.
Cleared the game with a score of over 800,000 points on Normal difficulty or above without continuing.
Destroyed 500 enemies using any charge weapons.