Tōhō: Imperishable Night is 2D arcade, vertical scrolling shoot'em up and the eighth main game in the Tōhō series. It has eight playable characters, four human-yōkai pairs: Reimu Hakurei and Yukari Yakumo, Marisa Kirisame and Alice Margatroid, Sakuya Izayoi and Remilia Scarlet, Youmu Konpaku and Yuyuko Saigyouzi. The game's story tells how the moon has been replaced by a fake moon that can never become full and the heroines must find the real moon before sunrise. Every stage has a timer. The player must collect a certain amount of time points. The characters fly through different environments, shoot the enemies, use special weapons (card spells) and avoid a lot of bullets.