Ryu and Ken sprites are based on Sprite Ryu Super Street Fighter ll (snes) by 
luis-mortalkombat14
   * Sprite Ryu Super Street Fighter ll (snes): http://luis-mortalkombat14.deviantart.com/art/Sprite-Ryu-Super-Street-Fighter-ll-snes-466615259
   * luis-mortalkombat14: http://luis-mortalkombat14.deviantart.com/

Creative Commons Attribution 3.0 License: http://creativecommons.org/licenses/by/3.0/