In Pac-Xon, You must fill empty space and capture ghosts by building walls. As soon as you fill 80% or more empty spaces, you will go to the next level. Beware of ghosts! If one touches you or the wall you're building, you lose a life! Unlike in the Pacman or Ms Pacman games, the amount and difficulty of the ghosts will change as you advance in levels. There are your common, run-of-the-mill ghosts that can be walled off. Then there are special wraith like ghosts that can float right through walls! There is also a gigantic ghost that is slow to move but will eat the walls you've built so be careful because he'll be tough to wall off. That said, this fun spin off of Pac Man has turned into a fan favorite for many. To play Pacxon, you must eat 80% of each level while avoiding the ghosts. Different ghosts can hurt you in different ways so be careful and the number of ghosts will increase to the point where the screen is literally crawling with them..