Pac-Man 99[a] was a maze video game with battle royale elements developed by Arika and published by Bandai Namco Entertainment for the Nintendo Switch.

Part of its Pac-Man franchise, its gameplay involves up to 99 players competing simultaneously, similar to Tetris 99.

Players control Pac-Man through an enclosed maze, eating dots on the board and avoiding colored ghosts that pursue them.

[6] Pac-Man 99 was developed by Arika, which had previously designed the similar battle royale games Tetris 99 and Super Mario Bros. 35, and published by Bandai Namco Entertainment.

[6][7] Pearl Lai, brand manager of Bandai Namco Entertainment of America, believed the game was a good concept as it combined multiplayer battle royale gameplay with the already competitive Pac-Man.

[8] Special DLC themes were released separately, which change the look of the graphics to the likes of other classic Namco arcade games, featuring themes based on Galaga, Dig Dug, Xevious, The Tower of Druaga, The Return of Ishtar, Metro-Cross, New Rally-X, Mappy, Genpei Tōma Den, Cosmo Gang the Video, Yokai Dochuki, Dragon Buster, Valkyrie no Densetsu, Rolling Thunder, Dragon Spirit, Wonder Momo, Baraduke, Toy Pop, Bravoman and Sky Kid.

[10] Additional themes based on Namco games such as Hopping Mappy, Warp & Warp, The Tower of Babel, Wagan Land, Tank Battalion and Splatterhouse: Wanpaku Graffiti were released for free post-launch.