I need To know the name of this movie. It is about 2 boys and 1 girl. The girl is in an accident that leaves her brain dead and the 2 boys put a micro chip in her head from the robot that they have. It makes her 2 fingers move like a V. Also the move has the old lady from The Goonies in it and the gril throughs a basketball at her head and knocks her head right off her shoulders. Please help me find out the name of this movie.

The name of the movie is "Deadly Friend". I saw this movie when I was a young girl.