The Kikaider franchise has truly been the runaway success of the S.H. Figuarts line in the last year or so. While certain Super Sentai teams are still lacking a full lineup, Bandai Tamashii Nations have rather neatly made it through both Android Kikaider and Kikaider 01 and are only a couple characters short of the full "main" cast. Of course, it does help that for five of those figures all they need to do is repaint it. The second release to cover the Kikaider 01 side of things is Gill Hakaider - the second Hakaider who now contains Professor Gill's brain inside his head. Not only is this version of Hakaider much more prominent in the show (appearing for the entirety of 01), but also has a radically different personality to his predecessor. Gone is the machine whose sole purpose is to destroy his rival, and in his place comes a thuggish, straight up villain Hakaider whose goals involve world domination as well as crushing the Kikaiders. In the toku Gill Hakaider is a separate entity from Professor Gill and works as a subordinate of SHADOW, while in the manga and anime Gill Hakaider is quite literally the Professor in a robot body - who builds SHADOW out of the ashes of his former evil organisation DARK.
Gill Hakaider was a Tamashii web exclusive, originally released in May 2015.