"December 17, 2016 on sale, at many retail stores in Japan! The full version of the special movie introducing the deformation of "DX Chogokin VF-31J SIEGFRIED (Hayate Immermann use)" has appeared! About the flow of "Fighter" --> "Gerwalk" --> "Battroid"'s deformation, we will introduce the points to be helpful when you actually taking for enjoy."
Bandai definitely up'd their game again on the 31 mold. They finally put definitive locking points in battroid mode that have been absent on a lot of their previous attempts ( exception is the VF-19 advance). The ratchet joint hips are a joy to see, especially on a valk with a large backpack such as this. The outward motion on the hips are limited to like 1 click, but I'll take it over a ball joint that will likely get loose in the future. They just need to add more ratchets to the shoulders and maybe some more locking points to the wings.