In 5 Street, players can obtain High Point by dancing. As time goes by, they will have enough points to do special and difficult dancing action, which is called stunt. There are various types of stunts in the game. You can earn extra scores by using stunts during your dancing. The stunt can be bought in the cash shop, and players can arrange them freely and set hotkeys for them.
(Not sure if this game is High Street 5 but with a different name, it’s probably the same game but for the english market).