Super Mario Advance 4: Super Mario Bros. 3 World 4-Fortress 1 Map Map for Game Boy Advance by Eevee-Trainer - GameFAQs
World 3 is an ice world while World 4 is a water world in New Super Mario Bros Wii. In New Super Mario Bros U, why is World 3 the water world
![New Super Mario Bros. Wii/World 1-Fortress — StrategyWiki, the video game walkthrough and strategy guide wiki New Super Mario Bros. Wii/World 1-Fortress — StrategyWiki, the video game walkthrough and strategy guide wiki](https://cdn.wikimg.net/en/strategywiki/images/thumb/f/fc/NSMBW_1-Fortress_Boss_Battle.png/300px-NSMBW_1-Fortress_Boss_Battle.png)