Can’t remember title but remember cover

So the cover of the movie has two demons on it, one pink and one green, with one of them being dressed as a doctor. In the movie a video tape From satan is sent to a house party and when they watch it the two demons are released and start killing everyone. I know one scene of the movie has a demon shoving his arm up someone’s back and using the person as a puppet. Does anyone know the title so I can finally watch it??