http://mkw.mortalkombatonline.com/ :-|

Dowload mame from www.mame.net and then go to www.romnation.net to get the game u need and then take a screenshot of what u need.

for arcade spites get MAME,i don`t know how to use it though.

for SNES roms get ZSNES,
to rip back grounds press 5,then hit print screen and


to rip sprites press 1 2 3 4 then open it in your paint program.then cut them out.