The most difficult task which faced the builders of Unova's great bridges was protecting them from the Bouffalant. Although when completed, bridges hold foundations that can even resist these charging pokemon, the process of building them was a long one which faced many setbacks from these large and powerful creatures. A Bouffalant's charge is a dangerous thing, capable of even clear-cutting a forest; when these pokemon are angry, even trees are not large enough to stand in their way. Bridge foundations overlapped Bouffalant habitat, and when they were chasing or escaping from foes, the Bouffalant saw little reason to avoid the materials which were being assembled into the base of Unova's bridges.

Initially, it was hoped that avoiding the Bouffalant could be done as a matter of luck; if construction was sufficiently hastened, it could grow heavy enough to withstand a charging Bouffalant before any Bouffalant interfered. However, this led only to expensive failures, for although the theory was sound, the building was never fast enough. Fencing the area off was impossible, for these pokemon did not even consider fences to be barriers and shrugged off barbed wire or electric wounds, and building closer to the water failed to frighten pokemon capable of swimming. A mass capture was considered, but was dismissed for environmental considerations and the cost of the necessary poke balls.

In desperation, a few engineers decided to leave out bait for the local Bouffalant, and once they were drawn to the area, explained with no small effort, through intricate mechanical models, what those piles of material were actually for. The Bouffalant, intrigued by the idea of continuing to charge across bridges instead of swimming slowly through water, left the rest of the construction alone, although they ran over quite a few passengers once the bridges finally opened!