[sparky_z]

What does it mean for the ghosts to be "unable" to reverse direction? Isn't that just another way of saying that the original ghost AI was programmed to never choose to do so? There are, in fact, a lot of things they never choose to do. The whole appeal of this idea is to see if you can make better decisions than the original ghost AI.

[neonmagenta]

The original ghosts had specifically written patterns: Blinky chases pac man where he is. Pinky targets 4 spaces in front of you. Inky targets based on Blinky and Pac's positions. Clyde sticks to a corner until you get too close.

They only reverse on their own when the mode changes or you get a power pellet, otherwise they have to wait until a corner, otherwise you end up with behavior like you see in this where you both quickly dance back and forth on the otherside of a wall

[sixothree]

Ghosts can only change direction at intersections. Otherwise it's just not Pac-Man. It's one of the many many other maze games from this time period. Pac-Man means something just as much as "vintage maze game" means something.

[xnx]

Should ghosts be able to go through walls?