Here is the full list of all 40 SATAZIUS achievements.
Used 10 continues through different game sessions.
Smashed yourself against one of the closing gates on Stage 5.
Practiced a stage.
Watched a replay.
Blasted your way into the Heart of Satazius and successfully finished your suicidal mission.
Raced against death an instilled fear on a never-ending parade of pirates.
Pierced through the enemy lines with all your might.
Collected 10 stars in 1 stage.
Destroyed 4,000 enemies.
Survived a brutal assault against all odds.
Used the first of many, many continues.
Got turned into a pile of molten metal by a certain massive stream of magma on Stage 3.
Reached MAX power on a charge weapon.
Destroyed 2,000 enemies.
Destroyed 500 enemies using any main weapons.
Got your first score extend!
Traversed through a massive onslaught.
Destroyed 1,000 enemies.
Got your first Game Over.
Mistakenly picked up a speed down item.
Destroyed 500 enemies using any sub weapons.
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.
Died at the hands of the Stage 1 boss's second form.
Reached MAX speed.
Destroyed 100 enemies.
Inadvertently collided against an asteroid on Stage 2.
Received the gentle treatment of a deadly massive laser on Stage 4.
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.
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.