Board Thread:News and Announcements/@comment-24592403-20170909004720/@comment-32634486-20170909025835

MovieLover9000 wrote: Well, Cassie's grandmother was absent from the original Crush Crush game, but we'll add that character to the movie, but she will only be seen in flashbacks.

Yes. Her (unnamed) grandmother will only appear in flashbacks and in her Heart necklace. We don't find out her grandmothers real name until the next movie where (spoilers) she appears as a ghost!