40 years, my goodness how time flies - yes pacman - space invaders were quite the sensation when we first saw them - there was nothing like it at the time, and look what we have now ! The games of today are so fast I can't play them - and as you say - unbelievable graphics.
I had a job to play that tennis game with just two white bars going up and down for rackets and a ball pinging back & fore. The popular Fortnite game today looks amazing but far too much to look at and keep up with for me. I must say today's kids are great with using their co-ordination skills for this game.