CHANGE ANIMATION SPRITE SIZE RPG MAKER 2003

After looking through the resource manager thoroughly I've figured out what kind of sheet I want to import to change the animation sprites. The real problem is I wish to change the overall size of the animation and that I don't know how to do. See I'm making something a bit mortal kombat based, just for fun really and I want to use MK3 Sprites for the battle animations, but those wouldn't fit.


So any solution to this?