|Genre(s)||New Super Mario Bros. X|
1-4, is the fourth level of World 1 in New Super Mario Bros. X. It is the first athletic course, and the first course to introduce Goombrats and Balloon Baby Yoshi (although the same Baby Yoshi can be acquirable just before Mushroom Heights on the world map).
The course is mainly comprised of moving mushrooms, such as ones that move up and down, or ones that tilt forward and backward. The enemies are mostly Piranha Plants, including the pipe and Super variety, though the course does introduce a new type of Goomba, the Goombrat, Goombas with stems on the top of their head. They act like red Koopa Troopas, as they turn around on the edge of ledges, and the Gold Ring was Here.
- Star Coin 1: On a blue mushroom platform near the beginning of the course, the player must use a Flying Squirrel suit or Balloon Baby Yoshi to reach it.
- Star Coin 2: Same as Star Coin 1, only that the Star Coin is below a blue mushroom platform.
- Star Coin 3: Under a moving mushroom platform and between two Super Piranha Plants, the player must wait until one of the latter goes down, or gently glide their way down.