Metal Gear Rex is a nuclear arm bipedal mecha from the Metal Gear video game series by Kojima Hideo and Konami.
Metal Gear Rex appeared in MGS 3 when Snake first met Granin and Colonel Volgin of GRU . Refuted, Granin send his plan for metal gear that was rejected by Volgin to CIA.
The plan later redesigned as REX.
This unique cubeecraft is design by Cubiecal. It is categorized as pop-fold? I assume that is because original cubeecraft is totally boxes why pop-fold has some curves to it ?
That’s however is my own opinion, you may ask cubecal himself at his deviantart page. Papercraft is easy to make.