First Pokemon game I owned.
I had played through most of the Blue Edition from a friend over a night, though. Had some major "Tetris effect" going on the next morning. That didn't feel good at all. Also, I got stuck at the part where you needed to purchase water I think? First didn't know what to do and then was out of money, lol. Well, not sure what my friend did with the save from thereon but I don't think he cared about the game anyway.
Back to the yellow edition, though. While I found it neat that I could see and talk to Pikachu for cute reactions, even back then I didn't exactly favor Pikachu? Dunno, it just wasn't ever my favorite in the anime and it wasn't that strong in the game, which mattered (and still matters!) to me quite a bit. In any case, as a whole the game just seemed so far above other gameboy titles I knew. The franchise hooked its claws into me real good then and boy did I grind a lot of Pkm to level 100. Fun fact, I never once reset the game because, of course, I couldn't. So many hours spend and fuck if I lose all those Pkm.
Well, I think I did reset 2-3 times to play the early parts without saving? Not 100% sure if that was possible but I think so.
Not having additional save slots sure sucked and that very thing came to bite me in my ass in regards to replayability with the next few titles, too. Fuck that lack of feature that somehow still exists today. Smh GF.