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
![Wii - New Super Mario Bros. Wii - World 5 - The Models Resource in 2022 | Super mario bros, Mario bros, Mario Wii - New Super Mario Bros. Wii - World 5 - The Models Resource in 2022 | Super mario bros, Mario bros, Mario](https://i.pinimg.com/originals/29/63/5e/29635ed390f6e891d21a51b6747a2bd6.png)
Wii - New Super Mario Bros. Wii - World 5 - The Models Resource in 2022 | Super mario bros, Mario bros, Mario
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