Theatrhythm Final Fantasy All-Star Carnival is an arcade "theater rhythm action" sequel to the Theatrhythm series on the Nintendo 3DS. The game has been optimized with arcade controls, improved graphics, and new songs and characters not featured in the handheld versions.
Like its predecessors, All-Star Carnival requires players to tap to the rhythm of iconic songs from the Final Fantasy series. Icons styled after musical notes must be tapped in rhythm to a song as a cursor moves over the notes, or the notes approach a cursor. If a red note appears the player has to tap the button; if a green note appears the player must hold the button down until the second end of the note passes, in which they flick the stick; and with yellow notes, the player must slide the stick in the direction of the arrows on them.
The game features over 60 playable characters, with nearly all characters from the handheld games returning, including new additions:
Both old and new songs from the series are featured, with the Battle Music Sequence and Field Music Sequence now fused together as one type of rhythm level: