Here is the full list of all 46 Chromatic achievements.
Complete 1 game.
Have at least 120 minutes of recorded playtime.
Have at least 5 hours of recorded playtime.
Complete 10 games.
Complete 50 games.
Achieve a x10 combo.
Achieve a x20 combo.
Achieve a x30 combo.
Achieve a x40 combo.
Achieve a x50 combo.
Achieve a x60 combo.
Achieve a x70 combo.
Achieve a x80 combo.
Achieve a x90 combo.
Achieve a x100 combo.
Defeat the first boss.
Defeat the second boss.
Defeat the third boss.
Defeat the final boss.
Defeat the first boss without switching color.
Defeat the second boss without being damaged by its Mega Laser.
Defeat the third boss without being hit by a Mega Plasma ball.
Defeat the final boss without destroying any of its security devices beacons.
Destroy 100 hazards or enemies.
Destroy 1000 hazards or enemies.
Destroy 5000 hazards or enemies.
Kill a bomb with another bomb.
Kill a bomb with another bomb with another bomb.
Kill a bomb with another bomb with another bomb with another bomb.
Finish a black hole with a bomb.
Do not get burnt by a supernova.
Kill a a comet before it disapears.
Be sawed by 3 Steel Spinners simultaneously.
Complete Classic gamemode without being hit by any asteroids.
Complete Classic gamemode with a chromatic accuracy superior to 40%.
Complete Classic gamemode with a chromatic accuracy superior to 50%.
Complete Classic gamemode with a chromatic accuracy superior to 60%.
Complete Classic gamemode with a chromatic accuracy superior to 75%.
Pause the game
Play Single Player using a Gamepad.
Play with a friend.
Score 300 000 points or more in Toxic solo gamemode.
Complete the tutorial mode.
Score 600 000 points or more in Toxic Co-op gamemode.
Be ranked 1st on any gamemode leaderboard.
Keep 2 Metallic Asteroids on screen for 1 minute.