"Replay mode" refers to a feature in video games or multimedia platforms that allows users to rewatch or review a previously played or recorded event. Full definition
However, the game encourages you to replay this mode over and over again for the sake of a fairly pointless team level - up system. (nintendoworldreport.com)
Luckily, there is a handy replay mode that allows you to watch your performance after you finish the dance. (the-gamers-lounge.com)