No missable achievements (plus 40 unknown)
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Died for the first time.
Destroyed 100 enemies.
Got your first Game Over.
Reached MAX speed.
Used the first of many, many continues.
Destroyed 500 enemies.
Destroyed 500 enemies using any sub weapons.
Watched the Agano burn and launched a full scale vengeance!
Destroyed 1,000 enemies.
Reached MAX power on a sub-weapon.
Died at the hands of the Stage 1 boss's second form.
Mistakenly picked up a speed down item.
Destroyed 500 enemies using any main weapons.
Traversed through a massive onslaught.
Reached MAX power on a main weapon.
Destroyed 2,000 enemies.
Got your first score extend!
Reached MAX power on a charge weapon.
Survived a brutal assault against all odds.
Destroyed 4,000 enemies.
Got turned into a pile of molten metal by a certain massive stream of magma on Stage 3.
Pierced through the enemy lines with all your might.
Used 10 continues through different game sessions.
Raced against death an instilled fear on a never-ending parade of pirates.
Collected 10 stars in 1 stage.
Got crushed by certain walls on the final stage, effectively ruining your entire run.
Blasted your way into the Heart of Satazius and successfully finished your suicidal mission.
Watched a replay.
Received the gentle treatment of a deadly massive laser on Stage 4.
Practiced a stage.
Smashed yourself against one of the closing gates on Stage 5.
Cleared a stage on Hard Difficulty and experienced the true SATAZIUS.
Cleared Satazius using 1 credit on Easy Mode.
Destroyed 500 enemies using any charge weapons.
Cleared Satazius on Normal difficulty or above.
Cleared Satazius using 1 credit on Normal difficulty or above.
Cleared the game with a score of over 800,000 points on Normal difficulty or above without continuing.
Cleared a stage on Insane Difficulty. You can go deeper!
Inadvertently collided against an asteroid on Stage 2.
Unlocked all the weapons on Normal difficulty or above.