Mario + Rabbids Spark of Hope is right around the corner and Jirard, The Completionist got to sit down with producer Xavier Manzanares about how the sequel to Mario + Rabbids: Kingdom Battle has evolved from its fantastic predecessor. Sparks of Hope releases Oct. 20 on the Nintendo Switch. Mario + Rabbids Sparks of Hope is an upcoming turn-based strategy adventure game developed by Ubisoft Milan and Ubisoft Paris and published by Ubisoft for the Nintendo Switch. The game is a crossover between Nintendo's Mario and Ubisoft's Rabbids franchises and is a sequel to Mario + Rabbids Kingdom Battle.