Avoid your own line, the other player's line, and the edge. The sensing for the lines is the helmet, but for the edge you can go farther than that. I'll add a restart button today (9/15/20) A couple of my other two-player games are: Golf: https://scratch.mit.edu/projects/417697531/ Soccer: https://scratch.mit.edu/projects/426691257/ Tanks: https://scratch.mit.edu/projects/420035452/ Matching Game: https://scratch.mit.edu/projects/417900055/
@learnlearncouk deserves most of the credit.