Use the arrow keys for the yellow ball and w, a,s,d for the red player. To get points for the red player touch the yellow ball, and to get points for the yellow ball survive ten seconds to get a point.
Thanks to @robotabc773 he and I did this project together check out him and his version in the link below. make sure to like and favorite. doing the two player version was my idea https://scratch.mit.edu/projects/171721718/