There are a few different types of levels in Sonic Forces. As SEGA showed off at E3, Modern Sonic levels are fast, featuring big moments of spectacle, while Classic Sonic levels are more about platforming and traditional Sonic gameplay. A third type of level is built around the custom-made hero characters you can create in Sonic Forces, offering gameplay tailored around the ability you pick for your character.
At Gamescom, SEGA is showing off yet another type of level: Tag Team, which teams up Modern Sonic with your player-made character. In a level we played, Sonic and the custom character have to break into one of Eggman’s factories and open up a path to let in the resistance, and you control both characters simultaneously.