Daidarabotchi (ダイダラボッチ giant) was a gigantic yokai in Japanese mythology.
His size was so great that his footprints were said to have created innumerable lakes and ponds.
In one legend, Daidarabotchi wanted to see which was heavier; Mount Fuji or Mount Tsukuba. So he weighed them on a great scale. However, when he was finished he dropped the latter, splitting its peak. The "Night Walker" form of the Forest Spirit from Princess Mononoke is based off of the Daidarabotchi.