I realized the music when Katey plays on her handheld is from the intro stage of Megaman 7.
I used to love that music when I was a child, it wasn’t a great game compared to the epicness or Megaman X and X2, but the intro music rocked. Blue Castle Games made a good choice lol. --- I am yours to command, point out our foes and step out of my way. - Adam, Shining Force