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