Dear god this. I don't even think they'd need to tweak the physics, as whilst being undoubtedly different to real classic, they still worked.
I honestly don't know what they're playing at with this episodic stuff. I snagged 1 for a couple quid and by act 3 I still felt robbed. The graphics were abysmal (i checked settings but couldn't seem to fix the horrible jagged shimmer on Sonic) and the complete lack of inertia/momentum and cheap falling out of the sky deaths were just painful. The music was also rather a letdown for a Sonic game.
Ep 2 looks no different tbh. At least not different enough. I can't really justify 10 squid on a platform game when I have a million and one other options from 20 years ago that do the job better.