Hakkai is very fond of sake, but never gets drunk no matter how much he consumes. He is extremely good at poker as well. His pet dragon, named Hakuryuu, turns into a green jeep and serves as their mode of transportation. Hakkai usually drives with Genjo Sanzo in the passenger seat, and Son Goku and Sha Gojyo in the back. He wears a monocle over his prosthetic right eye, and on his left ear he wears three metal clips which are youkai (yo-kai) limiters, keeping his power and form in check. Unlike Goku, Hakkai has more control over his transformation, and has been able to remove and replace his limiters under his own power on three separate occasions.