User blog comment:Mystic Monkey/What makes a Sonic Adventure game/@comment-4220590-20170626143235/@comment-679780-20170626152807

I respect that, just I think it's vital for Sonic Adventure 3 gameplay should emulate how it was in the Dreamcast era before Boosting became a staple thing. When Boosting was introduced in Unleashed, the gameplay was revised to accommodate for boost, such as Sonic R like controls for steering and (day) stages having stretched segments for boosting and side-scrolling areas for when not-boosting.

So if Sonic Adventure 3 had boost, well it might as well be Sonic Forces or another modern Sonic game.

Think of it like Sonic Mania. It was made to appeal to Sonic fans who prefer the classic era and doesn't have a Rush series "Tention Gauge" because Classic Sonic couldn't boost back then. Thats why if there was a Sonic Adventure 3, fans will expect it to play like a Sonic Adventure game than a modern one.