Liftable rocks are obstacles in Hey! Pikmin. These are plain rocks with vines wrapped all around them, and the end of the vine, on top of the rock, can be grabbed by Winged Pikmin. When enough Winged Pikmin have grabbed on, they will lift the rock and anything on it. This makes it possible to not only remove the rock out of the way to allow passage, but also to raise Captain Olimar or some Pikmin to a higher spot. Whistling the Winged Pikmin will make them drop the rock instantly, which can be fatal to any enemy, Pikmin, or even Olimar himself.