World 16-3 (Super Mario Maker for Nintendo 3DS)
From the Super Mario Wiki
World 16-3 is the third level of World 16 of Super Mario Challenge from Super Mario Maker for Nintendo 3DS.
The whole course is set above a huge pit, which Mario must cross by traversing the many Flimsy Lifts while avoiding Red Koopa Paratroopas. Bonus Music plays throughout the course. One of the challenges requires every Flimsy Lift to be used, and the other requires Mario to collect all 150 coins; a majority of them are easily grabbed, but a few of them are placed between Spike Traps, and can be obtained by bouncing off the shells of Red Koopa Troopas shell. About halfway through the course, two Mushroom Platforms will appear to be holding up two Flimsy Lifts, only for the platforms to still fall when touched.