To do this, find your way to install the backpack of Gundam Altron to Nataku's back, just like the image below.
The picture indicates yellow highlights on the sides of the inner shoulder parts, just like the concept that they have for most of the Frozen Teardrop Tallgeese I.
We are hoping to see more pictures of this Gundam soon.
GOOGLE ACCOUNT IS REQUIRED TO POST ON OUR COMMENT SECTION.