Once Luigi enters Skip Slope through the Crossroads in D-2: Hit Rock Bottom, he must slide down the slope to recover a Key which will open the door at the bottom leading to the Smuggler's Hideout. The Key is located on the right side of the slide off a ramp. Is it noteable that a Gem is avaliable for discovery on the slope. Just head left through a large hoop and pick up the Gem. If you miss the Key or Gem and wish to return to the top, just activate the E-Gate. It leads to the top of the slide. In mission D-2: Hit Rock Bottom, Luigi must first search the barrel in the corner of the bottom of the slope to find a windmill like mechanism. This mechanism can be interacted with using the Poltergust 5000. When blown on, the lockers covering the door at the bottom lift. In mission D-3: Across th