Classic video games and how well they hold up

[GeneralMacArthur]

I went back recently and replayed Ocarina of Time.  It struck me that if this game came out today it would still be really fresh and appealing and fun.  Just some minor graphical updates, maybe making the polygon style an intentional art form, is all it would take.

On the other hand, last year I tried replaying Final Fantasy 7 and dear god does it not hold up.  Most modern releases of it include a button you can press to speed the game up by 3x and even then it's tedious and unfun.  This is a game we played as kids over the course of a month in our basements, getting a new piece of the story every day and talking about it at school.  That's not how people experience games today.

What classic games hold up really really well?  Which just don't hold up at all?