Here is the full list of all 45 Just Dance 2018 achievements worth 1,000 gamerscore.
Complete your first song
Get 3 stars on a song
Get 3 stars on 5 different songs.
Get 5 stars on a song
Get 5 stars on 10 different songs.
Perform all Gold Moves in a song.
Perform all Gold Moves in 5 songs.
Perform only Good Moves or better in a song.
Finish 5 songs with 2 or more players dancing.
Finish 20 songs with 2 or more players dancing.
Get a Perfect on the last move of a song.
Get 10 Perfect moves in a row in any song
Complete a song with at least 90% Super (or better) moves.
Get 3 stars with all four Players on any Song with 4 Dancers
Get 5 stars with all four Players on any Song with 4 Dancers.
On a song with 2 dancers get 5 stars on both dancers
Get 3 stars on all songs (No Alternate versions).
Get 5 stars on all Songs (No Alternate versions).
Complete a 3 Dancer song with 3 or more players.
Play 1 song on the World Dance Floor
Play 20 songs on the World Dance Floor
Dance with 10 different people on the World Dance Floor
Dance with 100 different people on the World Dance Floor
Finish 1st in a World Dance Floor Party.
Dance 1 song on the World Dance Floor on a Saturday between 6pm and midnight.
Reach Online level 2,000.
Reach the "Superstar" rank on 5 songs.
Get 20 or more consecutive Super moves during any song.
Send 1 Score Challenge
Send 10 Score Challenges
Send 100 Score Challenges
Beat 1 Score Challenge.
Dance one song of these map types: 1, 2, 3 and 4 coaches.
Spend 10 Mojo.
Spend 50 mojo
Spend 200 mojo
Unlock all Avatars.
Dance to a 2 Dancer song on your own.
Play a playlist with Kcal tracking toggled on.
Play a 40 minute playlist
Change your Signature Move in your Dancer Card.
Share an Autodance online.
Share 10 Autodances online
Watch someone else's Autodance
Reach the "Megastar" rank on a song.