More specifically, the last game from the second gen, which expanded the story of Gold/Silver, and also introduced a bunch of neat stuff that wouldn’t snow up until the third generation of games, sometimes even the latter end, such as the animated sprites. It was a pretty solid improvement, and the best time I’ve had with a Pokemon game. Kanto is still practically deserted though.
My personal Favorite game of all time is Pokemon Leaf Green version. That was my very first video game, ever. I love it to death. My favorite pokemon, it has to be decided. I’ll get back to you on that one though, I have too many Favorites