The Free Style Stone is a Dance Stone containing the power of Free Style. It first appeared in episode 11
Those who use this stone are capable of freely expressing their emotions via dance without really needing to plan or think about their moves beforehand.
Those who are possessed by this Dance Stone will uncontrollably dance in an expression of their emotions, forcing those around them to feel a similar way. In episode 11, Tank was possessed by this stone after a fight with Mink, causing all the couples in the area to begin squabbling. It even caused Flash Beat and Wink Beat to argue, making them unable to retrieve the stone until Mink purified Tank.
Dance of Origin
Freestyle is a genre of dance where there is minimal to no thought or planning to the moves and routine. It is essentially improv dance, and is the complete opposite of choreography