OK

OK (Mid level) is a rank achieved on games in the Rhythm Heaven Series.

Description
Most players may earn OKs during their playtime in Rhythm Heaven after a few mistakes, some rhythm games which require almost perfect performance or those with strict timing may end up giving the player this result. Once a game is completed with an OK a silver medal will be earned, this does not count towards the medal counter as only gold medals do. A game that has been completed with an OK will not give the player chances to score a "Perfect" on it during random play.

Also, if the player fails a rhythm game three times and has the Barista skip the rhythm game for them, the game is cleared with a silver medal automatically.