Here is the full list of all 48 Just Dance 2014 achievements worth 1,000 gamerscore.
Get 5 stars on all songs (No Alternate versions, Sweat, Mash-Ups, or Battles)
Perform only Good Moves or better in a song
Get 3 stars on all songs (No Alternate versions, Sweat, Mash-Ups, or Battles)
Dance at least one complete song in 5 Happy Hour sessions
Get a Perfect Move on the last move of a song
Spend 400 mojo
Get 5 stars with all 4 players in any song with 4 Dancers
Get 5 stars on 5 songs
Get 3 stars with all 4 players in any song with 4 Dancers
Complete the 6 Dancers Song with 6 players
Spend 100 mojo
Win each Battle once
Spend 10 mojo
Win a Battle
Finish 20 songs with 2 or more players dancing
Complete an On Stage dance with 3 players
Access 5 different channels in JDTV
Complete a full 40-minute Sweat Program
Play 60 minutes in Just Sweat
Complete a full 20-minute Sweat Program
Finish 5 songs with 2 or more players dancing
Complete 3 songs in Just Sweat
Complete a full 10-minute Sweat Program
Share an Autodance video to the JDTV Community.
Complete an On Stage dance on your own
Play 20 songs on the World Dance Floor
Play 5 songs on the World Dance Floor
Perform all Gold Moves in 5 songs
Get 3 stars on 5 songs
On a song with 2 dancers get 5 stars on both dancers
Dance as Slimer in Ghostbusters
Perform a high 5 gesture with another player.
Apply the ice effect to an Autodance
Apply the big head effect to an Autodance
Apply any effect to your Autodance video
Apply the slime effect to an Autodance
Smile at an Autodance during playback
Get 5 Stars on a song
Perform all Gold Moves in a song
Complete a song with 90% or more Perfect Moves
Watch 20 Autodance videos in JDTV
Add 1 Autodance to your 'My Favorites' Channel
Like 1 Autodance video on JDTV
Watch one Autodance video in JDTV
Complete your first song
Get 3 stars on a song
Get 10 Perfect Moves in a row in any song
Join a performance when any song is in progress.