For around 48 hrs, pressing the "insert coin" button starts the game, which you can play for allegedly up to 255 levels. And it actually works! (Update: they've made it available permanently at google.com/pacman).
Which probably prevented a lot of "work" yesterday in offices around the world (obviously,
This is a fun gaming milestone/celebration, but it's clear that the core concept predates the 80s. Indeed, Hebrew Pac-Man has been confounding killer-kaphs and eluding lightning-fast-lameds within his semantic domain for ages (or at least since Nov 16, 2007):