Here is the full list of all 33 Klang 2 trophies - there are 17 bronze, 10 silver, 5 gold and 1 platinum.
Collect all trophies.
Defeat the final boss!
Watch the ending leading into the original Klang.
Clear all section 5 tracks on both normal and fast speed.
Earn 150 tokens!
Achieve 100 % on any track from section 1 or above.
Defeat fifth boss!
Complete your first fast mode challenge.
First S rank!
Clear all section 0 tracks on both normal and fast speed.
Clear all section 1 tracks on both normal and fast speed.
Clear all section 2 tracks on both normal and fast speed.
Clear all section 3 tracks on both normal and fast speed.
Clear all section 4 tracks on both normal and fast speed.
Clear a stage without taking damage in section 1 or above.
Complete all A-Eye conversations in the moon room.
Clear the tutorial
Defeat the first boss!
Defeat second boss!
Defeat third boss!
Defeat fourth boss!
Clear all section 0 tracks on normal speed.
Clear all section 1 tracks on normal speed.
Clear all section 2 tracks on normal speed.
Clear all section 3 tracks on normal speed.
Clear all section 4 tracks on normal speed.
Clear all section 5 tracks on normal speed.
Complete the section 1 conversation with A-Eye.
Complete the section 2 conversation with A-Eye.
Complete the section 3 conversation with A-Eye.
Complete the section 4 conversation with A-Eye.
Complete the section 5 conversation with A-Eye.
Unlock the moon room by defeating a boss with story content enabled.