The Mushroom Kingdom is the primary setting of the Super Mario franchise, first appearing in Super Mario Bros. Its appearance varies from game to game, often coinciding with the genre. However, common characteristics of the kingdom that are shared across games are its tall, round hills, presence of floating objects such as ? Blocks and coins, Warp Pipes, striped grasslands, and layered dirt. The kingdom is ruled by Princess Peach and the primary inhabitants are Toads