In my view, the head is the most important part of this model. The RX 78-2 as a whole is one of the most iconic robots in anime history, but it is the head which is the Gundam franchise’s most recognizable and enduring symbol . A mistake on any other part of the kit can either be hidden or ignored, but even the smallest blemish to the headpiece will stick out like a sore thumb. When building this final section, my self appointed rules were simple; no mistakes, no excuses.
Of course, this means that I came this close to making an unrecoverable mistake. I was only saved by an amazing (and confusing) quirk of the kit.
To explain, we need to look at the instruction book: