Touhou Kisouken: Infinite Blade Pavilion

Written by Gagawa Ichi the plot revolves around the energy of autumn mysteriously draining out of Gensokyo into the Underworld, where the Palace of the Earth Spirits has been taken over by mysterious intruders.

Similarly to Wily Beast and Weakest Creature, the playable characters of this game are Reimu Hakurei, Marisa Kirisame, and Youmu Konpaku.

Touhou Project fangame developed by Len. Gameplay revolves around a combination of factors: a "Skill Tree" similar to that of Mystical Power Plant that increases by collecting leaf items, special attacks that can be used by consuming Skill Tree levels, and a "tension gauge" that increases or decreases the amount of items dropped by enemies.