The “Core Form’ is made up of 4 separate parts, with 1 being a hidden phaser arm cap, then the 2 arms and the central body rounding it out.
It has 3 female fits across the bottom, 1 at each shoulder point and then the aforementioned female fit behind the phaser cap.
A very strange little guy to be sure, but once you begin playing around with it in hand, a different play pattern starts to take shape