New Super Luigi U: Layer-Cake Desert-6 -- Spinning Sandstones

This is a great level to collect coins for extra lives early in the game. There are rolling sandstone hills, some with lots of coins on them. Also in the level are Walking Piranha Plants and sand pillars. The first Star Coin is near a pipe where the Water Piranha Plants are. Jump over the Water Piranha Plants and go between the second and third Walking Piranha Plants. Jump up from the platform between them to find an invisible block with a vine. This will take you to an area with musical note blocks and the second Star Coin. Drop down to the main level and you'll see three statues, one of which looks like Luigi. The statues hide a hidden area with coins. Lakitu will appear when you step on the sandstone next to the statues. This Lakitu will throw Piranha Plants that will sprout when they land. There's a Red Coin Ring ahead with several sandstones spinning counter-clockwise. Collect the Red Coins if you like and you'll reach solid ground. There's a giant Piranha Plant and a Water Piranha Plant. Kill the giant Piranha Plant, then walk to the right to find the hidden third Star Coin. The sandstone to the right leads to the flagpole.