New Super Mario Bros. X/World 3-1

3-1, is the first course of World 3. It is unlocked via completion of World 2-Castle, and its own completion unlocks World 3-2 and a spot with a Bubble Baby Yoshi.
==Layout==
This course is an snow-themed level, with many pine trees, Munchers, Goombas, Koopa Troopas, and star-shaped platforms that spin as the player steps on them. The background of this level show ice mountains, pine trees and a starlit blue night sky full of constellations. This level also contains many hidden areas that usually contain coins including one with a Starman, which the player can use to run across the Munchers and Nipper Plants ahead. Goombas, Munchers, Nipper Plants, and Koopa Troopas are prominent enemies in this level.
==Star Coins==
*Star Coin 1: In mid-air, after a series of spinning stars.
*Star Coin 2: After an area of spinning stars, on top of the highest ledge.
*Star Coin 3: Near the very end of the course, hidden in the ground.
==Trivia==
The Spinning Stars in this level strongly resemble Mini Stars from Mario Party 9.
==Enemies==
*Goombas
*Koopa Troopas
*Koopa Paratroopas
*Munchers
*Nipper Plants
==Levels==
*World 3-Rainbow
*World 3-2