We have had this since a long time ago. then it was called “Level Select”. You typically unlock it by beating the game (or appropriate section[s]) at least once, or emulate it by saving to new slots periodically (When I played e.g. DOOM I would use a new save for each level, so I could later jump back to any level I…

This game, by the time I got to the end of this awful mess, made me want to snap the disc in two and mail it to Peter Molyneux in disgust, what a waste of time and money.