I noted that the iOS version plays differently than the console version.
At this part of Casino Street act 1,
In the console version if you hit the flipper and let go of the controls, Sonic goes to the right, up the slant, above and over to the left and then stops dead and drops before hitting the other flipper
However, in the iOS version, if you hit the flipper and let go of the controls, Sonic goes to the right, up the slant, above and over to the left and continues to the flipper. It's like the iOS version has a bit more forward momentum than the console version.