From Sonic Retro
<forumuser name="Mercury" />Mercury is a Tech Member on Sonic Retro, who is active on both the forum and on the wiki. Using his technical skill, he has done extensive research on the workings of the classic Sonic games, which eventually resulted in the Sonic Physics Guide, possibly his best known work. Mercury's other works include a Sonic engine (in progress), the hacking utility Sonic 1 Special Stage Editor, the Sonic Extractor programs, a tutorial that explains how to implement fully functional and correctly displayed "zone-agnostic objects" (pushable and breakable blocks) in every Sonic 1 zone (in progress), and the hack Sonic: The One Ring. He was nominated for Tech Membership a few times, and was awarded it on June 7th, 2010.