Oh, style!
You mean Genesis, Advance and like that? If that's so, then, it's a next gen one, you know: Modern Spindash, Rails, a boost for Sonic, and etc.
And no, I'm not copying anything, playing different kind of Sonic Fan games that "suppousedly" were next gen ones, I noticed things that I did'nt like, so when I started my own engine, I found my own ways of getting things done like what I wanted, and that's all, I'm not copying anything.