Released as a bonus with the anime's sixth DVD and Blu-ray Disc volume. This is a short, fan disc-like game that takes place following the end of the anime. Contains ten short scenarios.

One day during their club activities, the six members of the Sanshuu Middle School Hero Club are engulfed in a mysterious light. When they return to consciousness, the world has forestized and is invaded by Vertexes. For some reason, the Transformation App which should have become unnecessary has returned to them. After they repel the Vertex despite their confusion, a girl who calls herself Uesato Hinata appears before Yuuna and the others. According to Hinata, they're in a "special world" inside the Shinju. The Shinju is an aggregation of land gods, but before long this strong union will break apart through rebellion and the inside will be devastated. She tells them that the Vertexes from before were imitations created by the rebelling gods. If the land gods lose their unity, the Shinju will lose a great amount of its power. In this dire situation, the Shinju has summoned heroes from all eras within itself. With the gathering of heroes across different times the battle to suppress the rebelling gods has begun. [From [url=http://desuarchive.org/a/thread/154477680/#154480656]/a/[/url]] YuYuYui is a VN featuring an original story as well as a retelling of the YuYuYu anime and WaSuYu and NoWaYu LNs in VN format. Servers for the mobile & PC versions were shut down on October 28th 2022, however a console port has been [url=https://twitter.com/entergram_info/status/1579064333841051648]confirmed[/url] to be in development.

Sanshuu Middle School 2nd year, Yuuki Yuuna. Cheerful, energetic and always optimistic, she's a normal girl that is a member of the "Hero Club", a club that does anything it can to help people out. With the 3rd year Inubouzaki Fuu at its center, the Hero Club's activities include all sorts of things that benefit the public, from "finding foster parents for kittens" to "helping out at the kindergarten". However, the girls of the Hero Club have a true, secret duty: To fight mankind's natural enemy, the "Vertex", in a different dimension that regular people don't know about, the "Jukai". Only chosen Heroes have what it takes to fight the enemies that invade the Jukai to bring an end to the human world. ...Or that's how it's supposed to be, but the Jukai seems to be a bit off lately...? Who is the mysterious figure they encounter within this space where only Heroes and Vertex should be able to move...? [From [url=https://boards.fireden.net/vg/thread/200886613/#q201275103]/yyy/[/url]]