Robonyan 28

is a Boss Yo-Kai which first appeared in Yo-Kai Watch Busters: Red Cat Team & White Dog Corps.

Appearance
Robonyan No. 28 is similar to that of Robonyan with a large mechanism body build. He has now long cat ears with a studed metallic ring on the left instead of short ears. Two missile cannons were present on the mid area next to his head with the shoulders being black and round, with the number "28" imprinted in gold. His tail tips are now drills instead of red flames. The rim wrapped around around Robonyan No. 28 are yellow-white missiles. Lastly, a huge metal rim ssurrounds ared circle on the chest area.

Origin
Robonyan No. 28 is parody of Mitsuteru Yokoyama's Tetsujin 28, 1956 comic from the creator of Giant Robo. The 1963 animated adaptation was released in America as Gigantor, and is the first Japanese animation in history to feature a giant robot.