Here is the full list of all 17 Fred3ric achievements.
beat the game on a normal difficulty level
Beat the game on a Hard difficulty level
Beat Hyper J.S. Bach on a Normal difficulty level
Beat Johann Turbo Strauss on a Normal difficulty level
Beat Hyper J.S. Bach on a Hard difficulty level
Beat Bionic Amadeus Mozart on a Hard difficulty level
Beat Eric the Cyborg Satie on a Hard difficulty level
Beat Cyber Vivaldi on a Hard difficulty level
Get 10 stars for completed chapters of the game
Get all stars for completed chapters of the game
Win 100 duels! Not 44, not 72, not even 99. Exactly 100
10,000 notes… Well done!
Hit 75 Golden Notes and that’s it. Easy-peasy.
Complete any chapter with perfect note hits only
Lose any chapter without any correct note hits
Beat the game on both Normal and Hard levels in one session
Unlock all other Achievements