Masato Nakamura says he composed the remix of Sonic the Hedgehog's Green Hill Zone theme the way he did the original: By imagining it as a film. The difference is he only had still photographs when he wrote the song 20 years ago. Now for source material has the advantage of full motion video—and, of course, one of video gaming's most iconic pieces of music.
Wrapping up a series of vignettes on Sonic's 20th birthday, Sega takes a look at the substantial musical history of its flagship series. I'm not sure I gave the soundtrack in Sonic Generations enough credit; the remixes were very well done, although some of the tunes with vocals (notably City Escape's) had a sugar-pop way of boring into your skull.
But in any ranking of contributors to the much loved genre of video game music, Sonic and its artists would have to get a prominent mention. This video gives them a chance to take a bow, so give it a watch.