Here is the full list of all 18 Frederic: Evil Strikes Back achievements.
Complete level - Sweden
Complete level - USA
Complete level - Argentina
Complete level - Greece
Complete level - UK
Complete level - Austria
Complete level - Mongolia
Complete level - Russia
Complete level – Poland
Complete the game on Easy level
Complete the game on Normal level
Complete the game on Hard level
Complete the game on Chopin level
Complete the game skipping all the cut-scenes
Complete the game without using super attacks
Don't hit any note in one level
Complete any level while getting only perfect notes
Comlete the final level