World 4-2 (Super Mario 3D Land)

World 4-2, is the seventeenth level of Super Mario 3D Land.

Layout
Mario begins the level at the bottom of a towering underground road, filled with several types of blocks. As Mario progresses into the upper levels, more Goombas stacked upon each other will appear. There are also a few ! Blocks that, when hit, make large yellow blocks appear. Along the way to the Warp Pipe that leads to the level's Flag Pole, Mario can use the bouncing mushrooms to his advantage and jump near the wall on the far-left side, near the top. Doing so followed with a wall-kick will lead Mario up to a secret Warp Zone. This secret orange pipe leads into World 5.

Enemies
Enemies that appeared in World 4-2:
 * Inky Piranha Plants
 * Goomba

Collectibles

 * Near the beginning of the level is a small thing blue block against the wall. Mario can wall-kick while on top of it below the shadow of a spinning coin. Doing so will grant Mario the first Star Coin.
 * The second Star Coin is found in a secret tunnel accessed via crouching in a small pass near the third tower of Goombas.
 * The third Star Coin is found by wall-kicking on a group of yellow blocks created by a ! block. Atop these blocks is this coin.