This was my favorite arcade game for a while (in the very early days). See: https://en.wikipedia.org/wiki/Space_Wars (The arcade version was a direct derivative of the original described in the article.)

I played this a lot with a buddy. One day some clown came into the arcade and saw me playing. He said he was the best in the world, and wanted to challenge me to one game (for $20). I kept trying to fend him off and decline his challenge, but my friend put up the money.

I had never played anyone so good, and it took me a little while to adapt to his tactics. After a few minutes, I beat him. My friend collected his money, and then the guy started running around the arcade (Sega Center) yelling "This guy is the best Space War player!" over and over again while pointing at me. I was pretty embarrassed for him.