Mushroom Heights

Mushroom Heights, or Acorn Plains-4, is the fourth level of Acorn Plains in New Super Mario Bros. U. It is the first athletic course, and the first course to introduce Goomb-Acorns and Balloon Baby Yoshi (although the same Baby Yoshi can be acquirable just before Mushroom Heights on the world map).

Layout
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 Goomb-Acorn, Goombas with stems on the top of their head. They act like red Koopa Troopas, as in, they turn around on the edge of ledges.

Enemies

 * Piranha Plants
 * Super Piranha Plants
 * Goomb-Acorns

Trivia

 * This course is the first course of the Acrobat Pack.