When Emi (Tatiana Quaresma) and Mike (Travis McMahon) are talking on the street a tram moves past in the background. The tram is an E-class tram, one not introduced until 13 years after the events of the film.
At the party, Justin plays Midway's Twilight Zone (1992) pinball. The game is in standby mode not racking up points and the game sounds are that of a 1977 Gottlieb's Cleopatra or Joker Poker (simple dit dit dit with an electro mech chime). Also plunging the ball in with full arm is inconsistent with this games idea, although it is possible.