Cubeman

Classification: Seigi Choujin
Homeland: Hungary
Age: 18
Height: 250cm
Weight: 150kg
Choujin Kyoudo: 80,000 Power
Trademark Techniques: Hell's Hexahedron
First Appearance: Manga Chapter 96, Anime Episode 29B

Cubeman is a Rubik's cube choujin.

Cubeman defeated Mindpuzzleman in the first round of the 21st Choujin Olympics Arc, but he lost in the second round to Wolfman, who threw him out of the ring to his death.

(Source: Kinnikuman Wiki)