This was an idea I had after doing the Metroid II Final boss picture from last year.
Overall I think it came out pretty decent.
It was hard knowing just what the transformed SA-X would look like beyond the tinny pixel art. Looking back I could probably make SA-X even cooler looking now that I have a basic idea but I'm happy with this version and the work that went into it.
This version is for PC background purposes and features no hud.
Go here for a version complete with hud. [link]
And yeah SA-X isn't really the final boss but it's close enough!