Easy "Sloth loves you" Achievement
You need to upgrade your library until you get The Goonies (1985 movie). Once you have it, go into the basement and put The Goonies into the empty hole on the wall. A ladder appears to a new room, and inside is the Sloth. Talk to him, and he will say SLOTH LOVES YOU. If you program the movie, the viewers will say "this movie fits perfectly in the basement library."