Favorite video games

There are usually? settings inside the old cabinet games to make them easier/harder. As a kid only if you played a lot of 1 game did you kinda get a feel if that specific one was "tuned to be easier or harder". I feel today they should set them all up on easy mode, as its nostalgia... but maybe the owner is either setting them to hard mode on purpose (make more money, or "old gamers like it on hard mode right?) or they just bought and plugged them in and left the defaults. The harder settings usually eat quarters as you didn't know the difficulty setting going in. If i knew a machine was configured significantly harder (like no free lives, etc) i refused to play.