Pokémon video games have evolved a lot since they first hit North American stores in September of 1998, but the freedom to catch any and, if the slogan has any say, all of the titular creatures has remained intact. The third of three second-generation of games was 2001’s Pokémon Crystal, which features an iteration of the Johto region that I have explored more thoroughly than my own home town. After nearly two decades, I like to think I’ve experienced enough trail-and-error to know which of the myriad companions make the most tactical sense for progressing through the game’s gauntlet of Gym Leaders.