The game

THE iDOLM@STER Million Live!: Theater Days (アイドルマスターミリオンライブ!シアターデイズ Aidorumasutaa Mirion Raibu! Shiata Deizu) is a spin-off free-to-play rhythm game released for mobile devices based on THE iDOLM@STER: Million Live!.

Gameplay
The game is a rhythm game similar to THE iDOLM@STER Cinderella Girls: Starlight Stage where players tap notes in the rhythm of the background music. Different kinds of notes will be brought in to show how each icon must be tapped; these include simply tapping the icon, tapping and holding down the icon, tapping and flicking a certain direction, tapping two icons simultaneously, and tapping and sliding a certain direction. Different amounts of notes can appear during gameplay with a minimum of two and a maximum of six.

Songs
The songs that appear in the game are: