Ghosts are creatures that hunt Pac-Man and will kill him if they catch him. Every ghost has its own strategy to chase down our little dot-eater. The ghosts have two different moods that change the way they act during the game. In the default mood, ghosts are in scatter mood, they will just go to their home corner and stay there. After a certain time the ghosts change their mood and want to go chasing Pac-Man. This is indicated through the walls turning red. Have fun.