The Rush Boots are special footwear modifications made by the ship that allow you to move at a very fast rate, faster than normal that is. This also allows you to not be blown temporarily unconscious by the gusts of the Puffy Blowhog and the Withering Blowhog, however, this doesn't pertain to your Pikmin. This is good if you are trying to hurry to something at the end of the day, or escaping some sort of enemy threat, as well as other uses.