Hopefully the information presented about Google Pacman so far has been applicable. You might also want to consider the following:
Right now Google is displaying a doodle that represents the 25th anniversary of the Buckyball. The doodle is great because it resides in the place of one of the ‘O’s of Google and it acts like a 3D model of a chemistry representation. The Buckyball is controllable by the mouse and if the mouse pointer is jerked in a certain direction the ball would keep spinning in that direction. Clicking on the Buckyball opens up search results of the keyword “Buckyball”. The Buckyball doodle is great but it still fails to cause as much hype as the Pacman doodle that Google put up on to celebrate the 30th anniversary of the legendary arcade game Pacman. Right now the internet users are suddenly reminded of the Pacman doodle because of the interactivity of the Buckyball doodle. The Buckyball could be controlled by the mouse and the Pacman in the Pacman doodle was controllable by the keyboard. Now people want to see the Pacman doodle again because of its extreme popularity.
Well as it happens, Google has put the Pacman doodle online under the link google.com/pacman. The Pacman doodle is right there waiting for the addicts of the classic arcade game to play it as much as they want. This is a great way to keep people interested in the search engine because the doodle is there but so is the search box that has full functionality and it is basically a full fledge Google page, so when done with the game people could actually search for something.