Here is the full list of all 36 Just Dance 2021 trophies - there are 16 bronze, 15 silver, 4 gold and 1 platinum.
Obtain all other trophies
Get 3 stars on 5 different songs
Unlock all the Stickers
Unlock 306 Gift Machine rewards
Reach level 100
Unlock 60 Stickers
Dance to 10 different songs with Co-op mode activated
Score Megastar on 40 Just Dance 2021 songs (no Kids or Alternate Version)
Score Superstar or more on 40 Just Dance 2021 songs (no Kids or Alternate Version)
Get 3 stars on 40 Just Dance 2021 songs (no Kids or Alternate Version)
Complete one Daily Challenge or more per day for 7 days
Spend 10,000 Mojo in the Gift Machine
Unlock 20 Skins
Unlock 10 Skins
Spend 1,000 Mojo in the Gift Machine
Unlock your first Skin
Complete 5 Daily Challenges
Change the Alias of one of your Dancer Cards 20 times
Participate in 5 Tournaments in the World Dance Floor
Participate in a Tournament on the World Dance Floor
Dance to 25 songs from Quick Play
Score Superstar or more on 2 songs from Quick Play
Score Megastar on one song from Quick Play
Score Superstar with Co-op mode activated
Dance to a song with Co-op mode activated
Burn 302 calories in Sweat mode in one session
Score Megastar on a song
Perform only Good or better in a song
Get 20 Super or better in a row in any song
Get 10 Perfect in a row in any song
Score Superstar on a song
Reach level 5
Perform all Gold Moves in a song
Unlock your first Sticker
Dance to 3 songs from Quick Play
Complete your first song