There are 25 achievements worth a total of 1000 points
Hit 75% of the notes of any song in You're On Your Own mode.
Score over 750,000 on 20 songs.
Score over 500,000 on 20 songs.
Score over 750,000 on 10 songs.
Complete 100 songs.
Score over 1,000,000 in a duet.
Score over 1,000,000 on any song in Solo mode.
Complete every song in the tracklist in Solo mode.
Complete 50 songs.
Hit a X4 multiplier.
Score over 750,000 on any song in Solo mode.
Perform a solo gig.
Score over 750,000 on any song in Duet mode.
Perform a gig with 2 players.
Complete a song in Team Play mode.
Score over 750,000 on any song in Versus mode
Complete a song in Versus mode.
Complete every song in the tracklist in Duet mode
Complete all High School Musical 3 songs.
Complete all High School Musical 2 songs.
Complete all High School Musical songs.
Complete a song in Duet mode.
Get the top score on any song.
Complete a song in You're On Your Own mode.
Complete all the lessons in Sing It Pro.