Riverbed Soul Saver
Touhou
Gameplay
The main gameplay mechanic involves a gauge that the player fills up by collecting items. Once full, holding down the bomb key will 'unlock' the player's full strength with a powered-up mode for a short period of time.
Story
Concerned that the recent influx from The Last Comer and Mystical Power Plant of newcomers to Gensokyo may put the Great Hakurei Barrier under too much stress, Yukari Yakumo has expanded the interior of the barrier into a pocket dimension to delay new arrivals. A massive amount of something is now approaching through the barrier, and bringing a cold front with it. Yukari sends Reimu Hakurei and Marisa Kirisame into the barrier's "Otherworld" to deal with this mysterious invasion before it can endanger Gensokyo.
Music
Riverbed Soul Saver features original music in the style of ZUN, composed by Wanwan.