After checking out the Ex-Gokin post in more detail on Toybot's blog, I found out that the designer of this and many other incredible toy robots in the Getter series had passed away suddenly last August. Taku "Professor Robo" Sato & Fewture have produced some of the best die-cast heavy-ass robots there are in existence.
A serious RIP for the brains behind one of the most inspirational mecha designers ever.
You can find a great interview with him HERE.