The Penguin Suit is an item in New Super Mario Bros. Wii. Along with the Propeller Suit, it is one of the game's newest items/features. It appears in World 3, World 4 and many other levels. However, World 3 and World 4 are the most common, and have the biggest reason, of why it is there. In World 3, when Mario touches the Penguin Suit and transforms, he can slide on ice and throw ice balls. In World 4, when Mario touches the Penguin Suit and transforms, he can swim better. He can even dive! The Penguin Suit is a helpful item. You can get it in the minigame, Panels.