HOW TO PLAY: The Red soul (Red Heart) is normal, and white attacks hurt you. But The Yellow Soul is Almost the same as red, the only difference is that you can shoot boxes with it by pressing Z.
Thanks again to pococikapusta for battle creator. Oh, and if There's an Undertale Battle/Fight you want me to see, put it in this studio: https://scratch.mit.edu/studios/2987102/ (Select The Link and copy & paste it into the search bar at the top of the screen)
