Not Pacman, by Maurice Ltd., is an interesting take on the venerable dot eater formula. It resembles the classic game, appropriates the sounds, but here the play is the thing. Here, you don't play by moving Pac around directly, but spin the maze in which he and his dreaded ghost antagonists reside. Gravity does the rest, and the characters roll around while you try to keep our yellow hero from tumbling into an enemy.
There are a few control options, including using joysticks or even a steering wheel if you have one, but I find I like the mouse option the best, spinning the maze clockwise and counter-clockwise by moving the mouse right or left.
What the game is really crying out for, of course, is a tablet version that uses accelerometer sensors to let you tilt the device to roll Pac-Man around. Unfortunately, we only have Windows, OSX and Linux versions so far. Also, you can only finish the maze once and then the game records your points and time taken to finish, then resets itself, so the goal currently is to finish in the fastest time. But hey, it's free! You can download the different versions of Not Pacman here at stabyourself.net.
Here's our video of gameplay using a mouse in the OSX version:
As always, for more information on the history of Pac-Man, consult your local Dot Eaters entry.