The most noticeable differences between the original game and Plus are various tweaks to the graphics: the maze is green instead of blue, vulnerable ghosts are shorter and have a stem and leaf sticking out of their heads, the fruits have been replaced by new items (including a can of Coca-Cola) and the ghosts' eyes are now a pixel closer to each other.

The ghosts are also faster and more aggressive than they were in the original Pac-Man, which makes the game seem overall faster-paced and more difficult by comparison.

Midway advertised the game as "the only legal PAC-MAN conversion package"[2] and called it "Exciting!"

It consisted of a module which connected via a ribbon cable to the socket originally occupied by the Z-80 microprocessor.

Additionally, the kit also replaced the four Pac-Man program roms on the main game board with a new code.

Arcade Express rated the game eight out of ten, stating that it "features all the graphics, challenge and excitement of the original while eliminating patterned play" with random movement and a few surprises making it "an interesting new twist for Pac-fans.