World 3-1 (New Super Mario Bros. Wii)
From the Super Mario Wiki, the Mario encyclopedia
World 3-1 is the first level of World 3 in New Super Mario Bros. Wii. It is a snowy level which introduces a new penguin-like enemy, the Cooligan. It also introduces a new power-up, the Penguin Suit, which allows players to shoot ice balls, move more easily on icy surfaces, and swim more easily. Completing this course unlocks World 3-2.
The level starts with ? Blocks and Cooligans coming towards the players from the right. Past the Cooligans are bumpy ice platforms along with two Piranha Plants and a ? Block containing a Penguin Suit. Past this area are Koopa Troopas and more Cooligans, along with the midway point and a Warp Pipe. The Warp Pipe leads to a new area with a Red Ring and another ? Block containing a Penguin Suit. The players can slide along an icy roller coaster-like track using the Penguin Suit to collect the Red Coins and reach the flagpole while jumping to avoid more Cooligans and Koopa Troopas.
A Penguin Suit is required for all three Star Coins.