|Faction||Red Pants Army? , Tao Pai Pai X|
|Location||Red Ribbon Army Underground Ruins|
Engineering Corps were bulls or Buffalo that were members of the Red Pants Army and were located in the Underground Ruins in Korin Forest. Like the rest of the Red pants Army, they were most likely under the command of either Tao Pai Pai X or the second General White. They served as miners and were the most common of the forces there.
They wore nothing but red underpants. They were armed with pickaxes near the beginning of the dungeon, and mallets later on in the dungeon.