Movies that are based on video games are not usually very good. Double Dragon? Super Mario Bros? Street Fighter?
A) look around and conclude that the party doesn't start until you walk in! B) say, "He-e-e-y, Scoob, looks like we got a mystery on our hands!" C) decide that, despite the total lack of blood, that something very wrong has happened here and needs investigating! D) thank God that there is still lots of beer left in the kegs! E) go home as fast as you can, THE END.