Grand Poo World III is the third installment of the Grand Poo World series, a ROM hack made by Barbarian released in 2023. Work started a day after the ROM hack and completed all 41 exits. There are glitches and lags in the game. Most of the levels are located on islands that require an airship that can be rewarded after clearing the first part of the game (6 exits), can be done in order until the Tower of Fate, and the last six exits are fixed, including a puzzle level and the final boss on the final part of the game.