The Japanese guy; Dancers made a transforming Dai-X; only a couple of inches in height, from a Yujin figure.
The figure articulates and breaks down into the three Dai-X fighters, each of which transforms and is to scale with one of the larger X-Bomber toys that was released in Japan around 1980.
This X-Bomber was modified to allow the Dai-X fighters to dock with it and is repainted from its original red to a more accurate brown.
In the photos below, the X-Bomber, Dai-X and F-Zero One face off against new Gelma ships and robots (which have an uncanny resemblance to the Zords from Power Rangers in Space).
Dai-X makes use of the sword from a larger-scale toy Dai-X.
You can see the blog post (in Japanese) with the images in sequence with commentary here:
Mini transforming Dai-X and Mothership - Action Toys - Yahoo Blog
You can always translate it with the help of Google Translate or similar.
Behind the Scenes
Comics - French Comic Book Covers
Comics - Kikihara Naoki Manga
Comics - Look-In Magazine
DVD Release - France 2010
DVD Release - Japan 2002
DVD Release - Japan 2013
DVD Release - UK 2009
DVD Release - USA 2017
Fan Work - Artworks
Fan Work - Models
Andy Thomas - Dai-X
Andy Thomas - X-Bomber
Fan Work - Remastering
Fan Work - Stories
Fan Work - Subs
Laser Disc and DVD Sets
Publications - Portuguese Notebooks
Publications - Showa Books
Publications - UK Annual
Publications - X Bomber Encyclopedia
Soundtrack - Star Fleet
Soundtrack - Star Fleet Project
Soundtrack - X Bomber