That's better than the Spykkuri. Now only does it disguise itself as the heads of the people you care about, then turn invisible and try to stab you in the back at every turn, it tastes like cigarettes! Unless you give it cigarettes yourself, of course; then it's on your team.
Soldierkkuri is full of soup, Engiekkuri is full of steak...hmmm, what others?
Any TF2 related yukkuri seems like a creditable threats towards anyone given their background. I wonder if they're on the side of human like Aya-yukkuri?