Barbara

Barbara the Bat is the most iconic and main guitarist in the game Daigasso Band Brothers, she also appears on most of it's menus and sells stuff to the players. Though there is no specific story in the game she is accepted as the main character of it. She is also the host and owner of a magic shop in the game Master of Illusion.

Cameos
She appears as a unlockable Assist Trophy in Super Smash Brothers Brawl in which she pulls out her guitar and the magical notes it creates hurts the playable fighters. Also according to the description on her update and the Smashbros.com website Barbara secretely cameos in the Nintendo DS game English Training