Admittedly, 20 years ago the amount of effort and cost that went into the next level wasn't nearly as high as it is now. If all that work went into making a lev

Admittedly, 20 years ago the amount of effort and cost that went into the next level wasn't nearly as high as it is now. If all that work went into making a level, why would you actively try to keep the player out, especially if it might impact sales from people who are bad at games? Not that I agree, but it takes way too much to make a good game these days.