I've been experiencing what I would like to call a
"Pac-Man Revival". This is because there have been a lot of those moments during this past two weeks where I find myself either so bored or so stressed that playing a few levels helps me ease things a bit.
You will find a good port of the classic arcade version to play for free online
here.
Give it a try if you have a few minutes to spare and your godamned Websense blocker at work doesn't mess with it.