During Pac-Man Championship Edition's development, the team opted to make the game with 3D graphics and have it take place in the city of Manhattan, New York While the game's concept was reworked since, Manhattan's stage is still present in the final game, as well as the sequels

Street Fighter x Tekken was once meant to be released in tandem with a companion game known as Tekken x Street Fighter. The game would have utilized Tekken's 3D playstyle like how the former game uses Street Fighter's. However, development on the game has long been halted.

The opening cinematic for Pac-Man World originally intended to include characters from other Namco games like Mappy, Dig Dug, and The Legend of Valkyrie. It was later decided it would be more appropriate to focus on Pac-Man's family. Pooka stayed on account of their ball shape.

Two games from the Catalog IP lineup were crowdfunded via the website, Makuake. Both MilboxTouch ver. VR Pac-Man and Touch the Mappy (which was planned to be named "Mappy Returns") had successful campaigns raking in the support needed for development.

Coleco's LCD conversion of Pac-Man features a red maze, in sharp contrast to the blue of the arcade game (or even the green of Pac-Man Plus).

If you were to access the Smart Bomb Interactive website circa 2008, you would be greeted with this image on the home page representing the studio's game releases.

There is a subway train in Stockholm that features Pac-Man and three ghosts inscribed in some of the holes of its air vents.

Some releases of Jakks Pacific's Ms. Pac-Man plug 'n play console came with "game keys" that are cartridges containing more games. One features New Rally-X and Dig Dug, while the other has Pac-Man, Rally-X, and Bosconian.

In 1982, Milton Bradley released a Pac-Man board game. In this game, there are four Pac-Men roaming the board. When each person gets to move their Pac-Man, their opponents control the ghosts. The game ends when the board is cleared of marbles. Whoever has the most wins.

Pac-Man and a cast of legacy Namco characters appear in ひっぱりMappy大作戦 (Hippari Mappy Daisakusen), a webgame created by Grateek Inc. Players fling their character across the level to collect all of the valuables. The player can also flutter to help their landings