Level 2-3 (Mario vs. Donkey Kong: Tipping Stars)
From the Super Mario Wiki
The course is an arrangement of platforms disposed on three levels, with Red Girders linking them. Long Springs are also scattered throughout, and a Ladder appears between two central platforms. Two Shy Guys patrol platforms at different levels on the right side of the screen. The Goal Door is located at the top-left corner of the stage.
The M Coin stands on a platform patrolled by a Shy Guy, located at the top-right corner of the course. It can only be reached by climbing the Ladder from the left (which involves grabbing the pair of Hammers next to the Ladder), then bouncing off a Long Spring. The Hammers help destroy the Shy Guy and safely collect the coin.
Nintendo 3DS version
Wii U version