There is a new gameplay from the brazilian youtuber Roberto Karlos, aka RK Play, who use to play many sonic fangames, original games and some indie games, with good commentaries.
This gameplay video shows all the Story Mode levels: Guarujá, Sampa, Iguaçu e Pernambuco Zone, with some references and paths to get through the levels. Also, it’s a good video for the ones are stuck on the challenging Iguaçu Zone ^^
Also, I recommend to check his videos, there’s lots of cool stuff there, check it out.