80's possibly 90's space ship crashes into hills by kids house, goes outside to go to school and cops or fbi around where space ship crashed people at school acting strange and at the end runs from alien and then the slien gets killed some how alien has chip in head (brown alien short fat) but a coin ion back of the aliens head and uses the alien as some sort of light .
After the ship leaves kids parnets seemed to be still acting strange like they have been taken over by the alien.

Sounds like it might be Invaders from Mars (1986) (http://www.imdb.com/title/tt0091276/)