As someone who didn't really get into the show or the cards, this was my true exposure to Pokémon. I was a Digimon kid. Still, this game was amazing for a little kid that was just getting into RPGs at the time. Getting to form a unique team from a huge roster of creatures makes for a flexible experience, and the mechanics are simple enough to provide a gateway into the genre without being overwhelming. The game also has very clear progression as you travel around Kanto, with a few optional paths along the way. Also worth noting that Yellow version in particular lets you field a roster of all the starters if you wish, and it has the recognizable art style that the series has maintained since. All in all, it's a perfect game for having on the go.