嘿 what is all this evil and demond stuff on the new game and how do 你 use it and can 你 use it for all the characters 或者 just some of them?

What? The only ones who's had demonic powers were Akuma Ryu mostly, & it's been around since I think SF Alpha.

There are characters who can do some moves like Akuma 或者 other dark powers but for fun, its not related to the 街, 街道 Fighter story.