This is Robot Taekwon V paper craft who is the main character of the same anime series from Korea.
Robot Taekwon V was released in the United States in a dubbed format under the name Voltar the Invincible. Robot Taekwon V became the first Korean film to receive full digital restoration treatment in 2005.
So you may ask why is the design similar to Mazinger Z anime series, well that’s because the plagiarize it.
I heard it as a normal occurring for their manhwa and anime series.
Made by GoldenGlue