World 2-4 (Super Mario 3D Land)
From the Super Mario Wiki
World 2-4 is the fourth course of World 2 in Super Mario 3D Land. The level starts in a small site made of wood cubes and introduces Red-Blue Panels. The icon is a pair of Red-Blue Panels with trees surrounding them.
In the first area, a Red-Blue Panel is used to reach in the next area. After more wood cubes, Mario will find more Red-Blue Panels and Stingbies. Ahead, he must cross more Red-Blue Panels, but now with Baddie Boxes that release Goombas, spiked cubes and rotating Spike Bars. In one of these platforms, there is a Super Note Block. Near, Mario will face some rotating spiked bars above more platforms and another enemy box and a Stingby. Now, next to the Goal Pole, he can use one Red-Blue Panel to grab the top.