Ideas for vectorizing a 16-bit image

I would like to have the Street Fighter 2 character select screen in vector format.

I took a screenshot of the screen via emulator and enlarged it. Then I put a grid over it and started hand making 1 pixel at a time and coloring it the correct color. I have Ryu mostly done... but then I realize there might be a better way to do this. Anyone know of one?

Great design resource

100 Things Every Designer Needs to Know About People (Voices That Matter) Submitted May 09, 2016 at 09:28PM by VirtualAlex http://ift.tt/1s8nK7L