Maihana Soumakyou～Uniting Barrage Action is a horizontal danmaku shooting game, developed and published by souvenir circ. Originally released for PC on August 11, 2012, at Comiket 82. An enhanced version was released for PlayStation 4, as part of Play, Doujin!, on January 25, 2018 in Japan published by Unties.

The PlayStation 4 version was later localized under the title of Touhou Azure Reflections and was released on May 15, 2018 for both North America and Europe, with a 30% discount on the first two weeks after the game’s launch. The Nintendo Switch version was later announced with a worldwide release date of August 30, 2018. On September 20, 2019 enhanced version arrived on Steam platform for PC users, with a 30% discount on first week after the game’s launch.

The latest version of the game, 1.20, features a seven stage main game, Extra stage plus a Boss Rush.