The game that started it all, and the Sonic game that best utilizes momentum, is what you say? If you want momentum, don't attack the game that uses it best. It goes to show how uninformed you really are on the subject. If you want your precious classic Sonic momentum, then mod it in yourself. SRB2's playstyle is perfect as is. No changes need to be made to gameplay or movesets, the controls perfectly complement the level design. Gaining speed from slopes is useless, that's why the roll exists. There is no need to fix something that isn't broken. People really do not want SRB2 to have any more identity than a 2D Sonic game in 3D, which is genuinely stupid. SRB2 invented its own iteration of classic Sonic, and it should stay that way. Hopefully now you understand what I am trying to say.