Growing up, all we did was beat games multiple times. Most 16-bit games were like 2 hours. A lot of them didn't even have saves. It was lives and continues and when you ran out it was back to start.
One of the first 3D games that made me want to replay it was MGS on PS1. Kids at school would talk about Snake wearing a tuxedo and Grey Fox having a Spiderman skin on your third playthrough (He was just red and blue though.
) or getting the stealth camo or bandana depending on if you save Meryl or not. Me and my cousins used to play that all the time.