Like, I've bookmarked Bulbapedia to get through my recent games when I didn't have Internet when I had my first games.
Anyone remember when you had to actually interact with your friends to trade? :P
How about when all the "how-tos" were word of mouth? Like your friend heard how to catch the roaming legendaries and told you at school? And if your friends didn't play Pokemon you just had to figure it out yourself?
Oh, and what about those word-of-mouth rumors you couldn't run to the computer to debunk? Some of my favorites:
If you turn and talk to Pikachu after a trainer challenges you to a battle, the Pikachu will electrocute you and you'll die.
They made Crystal so that you can catch Celebi. All you have to do is go to Ilex Forest after you've caught the other 250 and walk around the shrine. (I walked around that stupid shrine for an hour)
If you catch all 150 Pokemon Professor Oak will give you Mew. That's what was in the custom Pokeball he ordered.
Celebi is in the basement of the new Pokemon grave site. You have to talk to Mr. Fuji after catching all 250.
You actually get [something other than a stupid certificate] if you catch all the Pokemon.
If you have a Jynx in your party you can catch a Missingno. with an afro (I knew that one was blatantly false but it made me laugh so it's one of my favorites).
You can call Giovanni to come fight you in Gold if you play the Team Rocket radio broadcast and let it scroll through the text 7 times. He'll be in the Ruins of Alph (Another one I actually wasted my time on).
Or no running shoes.
Having to fight Sabrina in Gen I.
Anyone else remember anything that they had to do that new Pokemon gamers will never experience (unless they get a GBC and an old cartridge)?