|“||I want that scroll. Do not challenge me, or you will regret it.||„|
|~ Yamikage to Benikage|
Yamikage is a villain in the Kirby: Right Back At Ya! appearing in the episode, Ninja Binge.
He is not actually a monster, nor was he created by Nightmare. He also made a cameo appearence as an action figure in the two-part episode, Snack Attack.
Yamikage was once a member of the Ninja Special Forces of the Galaxy Soldier Army, but eventually to the dark side of the Emperor of Darkness, Nightmare. That fact is proven when he was seen riding on top of the head of a massive silver dragon, which is just one of Nightmare's kaiju-esque monsters.
Years later, King Dedede purchased Yamikage to help him steal back Benikage's "failing" report card, which was a ninja scroll. Benikage's curiosity almost gets him killed when he challenges Yamikage, but luckily, Kirby steps in and saves the day when he got his Ninja ability, and defeats Yamikage by overpowering him. Afterwards, Yamikage retreats, and is last seen running through the woods, promising revenge on both Kirby and Meta Knight. Strangly enough, he never came back aftewards, so therefore he remains a mystery whether he is dead or alive, possibly never to be seen again.
Yamikage appears to be shaped like an upside-down egg with sunken red eyes and a scar on his left eye. He wears black ninja clothing and has a brown ponytail, and wears a kantana's shealth on his back. Yamikage also dons brown sandals and knuckle dusters to boot.