Here is the full list of all 31 Floor Kids trophies - there are 17 bronze, 7 silver, 6 gold and 1 platinum.
Unlock all trophies.
Make it to the rooftop (Earn 5 crowns on all Peace Summit tracks and unlock the epilogue)
Earn 5 crowns on all tracks on The Peace Summit.
Earn 5 crowns on all tracks on The Venue.
Earn 5 crowns on all tracks on The Arcade.
Unlock all of Saboya's move cards
Unlock all of Raquette's move cards
Unlock all of Bizzy's move cards.
Unlock all of Hiyo Ono's move cards
Earn 5 crowns on all tracks on The Art Space.
Unlock all of Ruckus's move cards
Unlock all of O-Live's move cards
Recruit a full crew
Earn 5 crowns on all tracks on The Grocery.
Earn 5 crowns on all tracks on The Metro.
Unlock all of Noogie's move cards.
Earn 5 crowns on all tracks on The Corner
Perform a strobe for 4 bars without falling
Do 100 holds and poses in one dance routine
Earn 5 crowns on all tracks on The Studio
Earn over 100,000 points on a dance routine.
Get a 100% perfect rhythm score in one dance routine
Hit a 10 on Flavor (Perform all 16 moves plus fly moves on any character in one dance routine)
Unlock all of Scribbles' move cards
Hit all crowd requests in a dance routine
Earn 5 crowns in a dance routine.
Ace the rhythm section and fast tap in both choruses
Perform 50 Hops in one dance routine
Perform a hop, reversal and pose in one dance routine
Perform a strobe while hitting a combo
Perform all 4 of any characters combos in one dance routine