Well, here's something interesting. Anyone have a higher-quality copy of MTV's Sonic & Knuckles "Rock the Rock" special?
This is taken from somewhere around 5 minutes in - you can find a copy of the special on YouTube if you want to see it for yourself in context.
At the top of the second row from the left, the first piece of concept art that's clearly on-screen seems to be none other than the newly-discovered alternative colouring of the Metropolis art we've all been discussing in this topic. Taken circa 1994, during development on Sonic X-treme, it appears in a wall full of what seem to be S3&K concepts at Sega Technical Institute - on the top of the right row, you can see what appears to be the Mushroom Hill (Valley?) concept that's just been posted - better quality video would be needed to be sure, but the arrangement of the trees seems to match it exactly. Also of note; in the middle of the row second from the right appears to be a Hydrocity concept, with Sonic busting through a wall on a wave of water like early in Act 1.
Most interestingly, in the middle of it all there's a concept I can only describe as Aquatic Ruin. Is it possible that Sega were, in some instances, using old level concept linework to produce colour tests for new, similarly-themed zones? If this were the case, then the re-use of the Metropolis art could have been used for a legitamate colour test for Flying Battery after all. Food for thought, perhaps? = )
This post has been edited by McAleeCh: 04 October 2011 - 01:28 AM