New power-ups are found within the game including a penguin suit that lets a character slide around on the ice and a propeller that acts as a new flying powerup. Up to four players can play at once, the characters being Mario, Luigi, a Blue Toad, and a Yellow Toad. It's a 2.5D sidescroller with the key difference being that there is a heavy emphasis on cooperative modes. The game plays in the same fashion as its portable counterpart. They land right in front of Mario, Luigi, Yellow Toad and Blue Toad, who are still chasing the airship. They explode while flying in the air, and a Propeller Mushroom and a Penguin Suit fall out of them. Meanwhile, back inside the castle, two Toads throw two presents with Penguin Suit and Propeller Mushroom stickers on them, into a cannon, and blast them out of the castle. Mario, Luigi, Yellow Toad and Blue Toad exit the castle and start chasing it. They then throw the cake and Princess Peach on the Airship, and it flies away. They take the cake away with Princess Peach and Mario, Luigi, Yellow Toad and Blue Toad chase after them. Interested, Peach goes to examine the cake, only to get kidnapped by the Koopalings who jump out of the cake. Mario, Luigi, Blue Toad, Yellow Toad, and Princess Peach are seen in Princess Peach's Castle, celebrating her birthday.

New super mario bros. wii