New Super Mario Bros./World 8

World 8 is the final world in the game. Not only is it the world with the most levels, it is also the one of two worlds without any secret exits, the other being World 6. However, unlike World 6, World 8 does not have any alternate paths at all, so one must clear every level in this world to beat the game. All types of Toad Houses appear here, and all of them require Star Coins to reach.