As the world is forced to wait longer for the release of Sonic Mania, more footage of the game is rolling out ahead of E3 2017. This latest look at the Chemical Plant Zone looks exactly like the one you played in the past, but there are a few changes. New routes, playable characters, and a remixed soundtrack all compliment what looks like it's going to be one of retro gaming's best experiences you can get this year. See the new footage below.