Here is the full list of all 30 Audica achievements.
Complete the Advanced Tutorial.
Complete the Basics Tutorial.
Friends Leaderboard contains at least 10 friends.
Gold Star all songs on Expert.
5-Star all songs on Expert.
Finish Campaign on Expert.
Beat a song with Mirror Mode enabled.
5-Star all songs on Advanced (or above).
Finish Campaign on Advanced (or above).
5-Star all songs on Standard (or above).
Finish Campaign on Standard (or above).
5-Star all songs on Beginner (or above).
Achieve Perfect Timing and Perfect Aim requirements together on a single run.
Finish Campaign on Beginner (or above).
Beat a song with aim-assist at 50% or lower.
Finish a song with an Average Aim Offset and Spread of under 1.5 degrees on both hands.
Use the gun spinning feature while maintaining a streak.
Finish a song with an Average Timing Offset of less than 5ms.
Use the gun throwing feature while maintaining a streak.