हे what is all this evil and demond stuff on the new game and how do आप use it and can आप use it for all the characters या 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 या other dark powers but for fun, its not related to the सड़क, स्ट्रीट Fighter story.