WELCOME TO BOWSER’S FURY!!

One fine day. Mario walks down a path in front of Peach's Castle. Suddenly, small puddles of black goop can be seen on the ground and Mario would follow, eventually stopping at a mass of black graffiti shaped like Shadow Mario's logo. The graffiti expands to create a portal that Mario falls through and transports him to Lake Lapcat, where a rainstorm is occurring. Shortly after Mario lands, he encounters Bowser, who has become a larger and more powerful form known as Fury Bowser. After Fury Bowser retreats, the storm clears and Mario finds a panicking Bowser Jr., who explains why Bowser transformed. Junior claims he painted his father with black paint with his magic brush and he was the one who corrupted Bowser. Now Mario and Bowser Jr., must free every island from the black goop that Fury Bowser has covered with by collecting Cat Shines across Lake Lapcat. Will YOU join them on this journey?