B3-NK1

is an Brave-classed, Thunder-attribute B-ranked Yo-Kai. In the yo-kai dictionary, it states, 'A Yo-kai whose body is half machine. It could very well be the world's first cyborg Yo-kai.'

Abilities and Powers
Using his polearm, Karakuri Benkei can pierce through modern technology devices without making holes in them, and instead looking for screws needed for said devices to work in order to assimilate them with his weapon and forging the "ultimate weapon". In particular, he looks for the "hero's screw", said to awaken the true power of his polearm.

Yo-kai Watch:
Gourd Pond Museum (Night): 1F

Stats
NOTE: Remember that B3-NK1 won't always end up having these stats at 99 due to attitude.