This post selectively picked out the flyers with girls in them. The majority of flyers from this era didn't involve models.
Laser Blast TV Commercial https://archive.org/embed/laser_blast_commercial
But when they targeted adults, sex appeal was huge.
Don't believe me, go to https://flyers.arcade-museum.com/ that was posted above and walk through each and every one. I used to collect these things, but I'll let you find the answer yourself.