Lucifer

Unreleased

Lucifer is featured as a boss in Kingdom Hearts Birth by Sleep. In the game, Lucifer is on a self-assigned mission to keep Ventus and the mice from collecting materials for Cinderella's ball gown, just as he did in the classic film.

Kingdom Hearts Birth By Sleep
When Ventus comes to Castle of Dreams, he quickly befriends Jaq, one of Cinderella's mouse compainions. On a mission to collect materials for the girl's ball gown, he runs into Lucifer as he collects a disgarded bead by the sleeping cat, and a fight ensues. Lucifer's role after the battle is still unknown, but it is possible that it goes on just like the film.

Origin
Lucifer is a ferocious cat from the 1950 Disney film, "Cinderella". A nemesis to Cinderella's mice friends and the other animals living on Lady Tremaine's estate, he is pampered and praised by the elderly lady. While the two stepsisters and the wicked stepmother fail to realize Lucifer's evil (though they do, they just want to use it as an excuse to torture Cinderella further), he never manages to avoid the protective and watchful eyes of one person, Cinderella herself. She has a secret weapon used for dealing with the devious cat, however; her loyal dog Bruno. At the film's climax and even the in this world, he again tries to catch both Jaq and Gus while they are trying to free Cinderella from her locked room, but the birds see this and summon Bruno, who rushes to the mice's rescue and scares Lucifer out of the house as the cat jumps out the tower window, and falls to his presumbed death.