In this photo provided by the North Korean government, North Korean leader Kim Jong-un, center, poses for a group photo with fighter pilots who made the demonstration flight at the opening of an exhibition of weapons systems in Pyongyang, Oct. 11. AP-Yonhap

A North Korean soldier clad in a super-tight blue outfit in a state media photo has generated a buzz on social media, with some calling him ''a superhero,'' ''a captain DPRK,'' or ''a rocket man.''

He was among nearly 30 soldiers who posed for a photo with leader Kim Jong-un during an exhibition of weapons systems on Monday. North Korea published photos of the event the following day.

They all mostly wore olive green uniforms, the most common color for North Korean military uniforms. Only two of them wore different colors ― the one in the blue outfit and the other in a navy-blue uniform, which isn't that unusual. Kim put on a dark suit.

Some Twitter users in South Korea, the U.S. and elsewhere joked about his appearance, saying he looks like a ''human cannon ball,'' or the North Korean equivalent of Captain America.