Pokemon Crystal marked the first time in the franchise in which players had the option of choosing to play as a male character or a female character. This choice has been in every game since.
What did you think of Kris? Did you like her? Did you ever play as her?
I love her design, and was really disappointed she got replaced in HGSS. I played as her a few times. I think she's my favorite female character we can play as in the games.