W.H.A.M.! means Wave High Advanced Model.
Part swapping for the protective visor for the eye
Cockpit hatch can be opened
A level on the backpack allows you to adjust the pilot seat vertically.
The patrol lamps can be expanded by pressing a button on the back of the figure.
The right leg armor can be opened to reveal the revolver cannon and the right hand can be extended to reach for it.
Late January release, 14,490 Yen (inclusive of tax).
All images are from Digitamin Blog.