a wicked japanese gizmo dude adapted Pacman on Excel 1997 and 2000 : " All actions are expressed by rewriting of a cell background color. Each one of cells as a dot, and move it by make cell's background color high-speed rewriting. Although I did not think it's possiblele, but now it's possiblele by the favor of the improvement in a performance of a personal computer. The window zoom is 10%, so the each cell can not be seen. But it is A CELL."