Here is the full list of all 25 Arcadia achievements.
Score 100 000 points in Chaotic Mode
Score 75 000 points in Chaotic Mode
Score 100 000 points
Score 75 000 points
Score 50 000 points
Score 50 000 points in Chaotic Mode
Have a cookie!
Everyone's a winner!
Score 25 000 points in Chaotic Mode
Score 25 000 points
Play Time Attack mode
Play Pivot mode
Play Chaotic mode
Play Casual mode
Multilingual
Fancy a colour change?
Slay 1000 enemies
Score 125 000 points
Score 150 000 points
Score 175 000 points
You just got 200 000 points.
Score 125 000 points in Chaotic Mode
Score 150 000 points in Chaotic Mode
Score 200 000 points. You can't achieve this with ease.