Super Mario Bros. Wonder

Mario and his friends are invited to the neighboring Flower Kingdom by its ruler, Prince Florian, to see a demonstration of a Wonder Flower; great treasures of the Flower Kingdom that can warp reality. Bowser interrupts the ceremony and seizes the Wonder Flower, using its power to merge with Prince Florian's castle, turning himself into a giant flying fortress and imprisoning the citizens of the Flower Kingdom. Mario and his friends volunteer to help Prince Florian stop Bowser, prompting the prince to accompany the party. As the gang work to save the captured Poplins, they realize that by gathering six Royal Seeds, which are considered precious treasures in the Flower Kingdom, they will grant access to Castle Bowser, as each time a Royal Seed is collected, it destroys one of the six Cloud Piranhas protecting Castle Bowser.

After freeing the various regions of the Flower Kingdom from the control of Bowser Jr. and removing Bowser's defenses, Mario and friends confront Bowser on his flying castle, where he reveals his plan to use the Wonder Flowers' power to enslave the universe with rhythm. The party defeats Bowser and returns the Flower Kingdom to normal, while Bowser, Bowser Jr. and Kamek flee.