Angel Beats! Operation Wars (エンジェルビーツ!オペレーションウォーズ, Enjeru Bitsu! Opereeshon Woozu) is a social puzzle game based on the Angel Beats! series, released for the iOS and Android devices. The game allows players to collect cards with illustrations of various characters from Angel Beats! as well as fight the Shadows alongside the Shinda Sekai Sensen. On March 10th, it was announced that service for the game will terminate on May 10th, 2016.