The Grandma is innocent, she brought you into your home because you were lost and needed shelter, then she forgot about it because of her dimentia, so she sees it as a person sneaking into her house and stealing her car keys, door keys. Then out of fear she hits you. Then when she remembers she asks to play hide and seek, and says "I see you". Then she gets startled when she sees you and hits you with a bat. Case Dismissed, Not Guilty.

I'm a little bit conflicted. It just seems like it's an (albeit not so direct) port of the mobile version. I mean... get it?? If you want???

mmhghgffghgmm