Yes, for more than one game (Bomb Jack, Xevious, Mr.Do, Hyper Olympic, ..)
The arcade manager had given me a time limit to play and then he would have turned off the machine, threatening that otherwise it would have increased the difficulty via the dip-switches, making the game too difficult for others.
So it was a good deal for me (for the little money I had available..): a bit easy levels to train me better
Sometimes he would let me play longer to attract people.
In any case, even at the most difficult level, in some I managed to last for very long times (and create big audience)
(but I think this is even difficult to imagine for a today young boy)