MG Psycho Zaku ver.ka
I finally got my hands on this kit a little while ago, a kit I've wanted ever since I started building Gunpla!
As you can see from the size of the box, the sheer volume of parts is insane!
Besides the joints in the arms and legs, the process of threading tubes through the power pipes was a challenge, as I'm not used to it.
The main body was relatively easy to assemble, but the ridiculously huge backpack, rocket boosters, and tons of weapons on its back were definitely the most difficult part.

"I'm always after you...!" (MG Psycho Zaku ver.ka) | ぬわし's Gunpla works