Here is the full list of all 27 MUSYNX (HK) trophies - there are 10 bronze, 10 silver, 6 gold and 1 platinum.
Totally play 200000 notes
All Songs Average Sync to 115%
All Songs Average Sync to 110%
Totally get 100 EX ranks
Totally get 50000 EXACT note marks
Play one song for 15 times continuity
Get one B rank
Play one song for 8 times continuity
Totally get 30 EX ranks
Complete any song at 6 different stages
Any Song get 122% Sync
Totally play 50000 notes
Totally get 18000 EXACT note marks
Select Exit when you play a Lv.? song
Touch the Little Girl in the store 10 times
Totally get 5000 EXACT note judgement
10 Songs get EX rank
Complete once HD mode
Totally play 10000 notes
3 Songs get EX ranks
Any Song get 120% Sync
Play differently 10 Songs continuity
Get one EX rank at 6K Mode
Any Song get 118% Syncrat
Get one EX rank
Collect All Available Trophies.
Play All Songs, All Difficults and All Modes