If you've completed it before and want to go back, Pause the game, press 'Exit Game', Then
go on 'Epise Replay'. If you haven't done it before go to the computer in the front room
and press the action button (A mind bubble with the action button will appear when near
the computer). You will arrive at a theatre-like place, then just go through the door that
says 'Neverquest' above it!