This is a partial recolor/remold of the Earthrise voyager version, so those who missed that release can easily compensate with this one.
Compared to the previous version, the hands are now partially articulated (closed/open).
Accessories: Shoulder pads, cape and crown as per the movie scene, and two additional rifles that attach to the inside of the shoulder pads instead of directly to the arms.
There is also a nice throne - which is actually the one Megatron is sitting on in the Decepticon spaceship from the first G1 episode.
It is also possible to store the above accessories on the back of the throne itself.