This refers to a community-created, unauthorized modification of a specific Japanese video game which enables players to experience the game in English. It involves extracting the original game data, translating the text and other relevant elements, and then reassembling the modified data into a playable form, typically distributed as a ROM file. A user would typically apply this ROM file to an emulator running on a computer or other device.
The significance of this activity lies in its role as a bridge to overcome language barriers and cultural localization issues. It allows a wider audience to access and enjoy a video game that was initially inaccessible due to its exclusive release in a particular region. The creation and distribution of these projects often stems from a passionate community driven by a desire to share and preserve video game culture, especially when official localization is absent or unlikely.