Shachibato! Г— Hyperdimension — Neptunia Collabora...

The 2020 collaboration between Shachibato! President, It's Time for Battle! and Hyperdimension Neptunia ran from January 30 to February 13, introducing the four CPUs as recruitable units in a limited-time crossover event. This collaboration, which featured exclusive dungeons and a unique storyline, is no longer accessible, as the Japanese version of Shachibato! ended service in October 2020.