Shonen Jump's One Piece, a 2005 GBA action-adventure by Dimps and Bandai, follows Luffy and the Straw Hat Pirates through the East Blue Saga, chasing the fabled One Piece treasure. Selling ~500,000 copies, it’s a 2025 X retro favorite (,).

The .gba ROM (~4 MB) features vibrant 16-bit visuals and anime-inspired music, running smoothly on emulators like VisualBoyAdvance, mGBA, or RetroArch on PC, Mac, or Android. Legally download Shonen Jump's One Piece GBA ROM by dumping your cartridge with GBxCart RW (~$50,). Avoid illegal ROM sites like EmulatorGames.net due to malware and Bandai’s copyright rules (). Buy One Piece cartridges (~$15–$50 in 2025 on eBay) for legal dumping or play on Analogue Pocket. Join the Straw Hats legally at Gigarom