Here is the full list of all 43 Just Dance 2014 (EU) trophies - there are 30 bronze, 9 silver, 3 gold and 1 platinum.
Unlock all the trophies
Get 5 stars on all songs (No Alternate versions, Mash-Ups, or Battles)
Dance at least one complete song in 5 Happy Hour sessions
Perform only Good Moves or better in a song
Get 3 stars on all songs (No Alternate versions, Mash-Ups, or Battles)
On a song with 2 dancers get 5 stars on both dancers
Win each Battle once
Finish 20 songs with 2 or more players dancing
Watch 20 Autodance videos in JDTV
Burn 2,000 calories in any mode in Just Dance 2014
Play 20 songs on the World Dance Floor
Get 5 stars with all 4 players in any song with 4 Dancers
Complete a song with 90% or more Perfect Moves
Complete an On Stage dance with 3 players
Complete an On Stage dance on your own
Burn 1,000 calories in any mode in Just Dance 2014
Like 1 Autodance video on JDTV
Watch one Autodance video in JDTV
Dance as Slimer in Ghostbusters
Apply any effect to your Autodance video
Apply the ice effect to an Autodance
Win a Battle
Spend 200 mojo
Spend 50 mojo
Spend 10 mojo
Play 5 songs on the World Dance Floor
Complete a full 40-minute Sweat Program
Get 5 stars on 5 songs
Play 60 minutes in Just Sweat
Burn 500 calories in any mode in Just Dance 2014
Get 3 stars with all 4 players in any song with 4 Dancers
Get a Perfect Move on the last move of a song
Complete a full 20-minute Sweat Program
Complete a full 10-minute Sweat Program
Complete 3 songs in Just Sweat
Perform all Gold Moves in 5 songs
Finish 5 songs with 2 or more players dancing
Get 3 stars on 5 songs
Get 10 Perfect Moves in a row in any song
Perform all Gold Moves in a song
Get 5 Stars on a song
Get 3 stars on a song
Complete your first song