Mario + Rabbids Kingdom Battle is an action-adventure turn-based tactics video game developed by Ubisoft Milan and Ubisoft Paris and published by Ubisoft for the Nintendo Switch video game console. The game is a crossover between Nintendo's Mario and Ubisoft's Rabbids franchise. In Kingdom Battle the story follows Mario his friends and a group of Rabbids who try to save the Mushroom Kingdom from invading Rabbids that accidentally misused a powerful invention and began to wreak havoc. Mario + Rabbids Kingdom Battle was conceived in 2014 by Ubisoft Milan creative director Davide Soliani and Ubisoft brand producer Xavier Manzanares. The design objectives emphasized the dissonance of both franchises and creating a strategy game that stood out with unique elements. Its visual elements and animation were casual and vibrant and its music was composed by Grant Kirkhope. Although the game was met with poor reception when it was leaked primarily due to the use of the Rabbids' franchise and weaponry it was well received when it was officially announced at E3 2017.