This is a little guy I call Golden Mega Mew, Based on the design of Mega Mewtwo Y and the size of Original Mew,
Steel/Psychic Type (A Metagross sprite replacement) with a golden bronze colored and plated body
Red sparkling Eyes when he pauses briefly. Added pc sprites and follower sprites.
(The Front-n is just the back one flipped.)
Here's a video of the files in game client.