Not Pacman, as noted by Cult of Mac, is very different from Pacman, but looks the same. Mostly.
Ever wondered how Pacman would be like with physics? No? Well, it’s revolutionary. This mashup of “Not” and “Pacman” puts The Pac and the Ghosts in a in a Pacworld cage, at mercy of gravity and the level’s shape, controlled solely by you. Ghosts still don’t like you very much, so you should be careful to make Pacman avoid them.
Free download for mac/windows/linux.