Looks like a sprite of early Rain (being purple), as he handled a sword too. Ryu Hayabusa wears black (or blue), he's not like Noob Saibot though.
The classic design of the ninja gaiden trilogy, Ryu wears a purple-blue siut, and this a Sprite from his classic design. But thanks by the crítics, this is only a demo, I Will edit the sprites soon. This sprites is for a future kreations.
It's so rare to so MK1 sprite edits. Good job.