How to Edit Text in Sega Genesis Games
While you can't edit the text in the actual Sega Genesis game cartridge, you can edit the text in the game's ROM. A Sega Genesis game read-only memory (ROM) is an exact copy of the game in a computer format. Using a hex editor that changes the binary language of computers into hexadecimal language that is easier to read and understand you can find the text hex string and edit it to say what you want. Every Genesis ROM is different and will have the text information at a different hex string.
Instructions
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Download hex editor for your computer. The following are free hex editors: Freeware Hex Editor XVI32, HxD and Hex Edit. Click on the hex editor's file and select "Run." Select "Next" and "Finish" to complete the installation.
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Open the hex editor and select "Open" from the "File" menu. Choose the Sega Genesis ROM you want to edit the text of and select "Open."
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Click "Search" from the main menu and input the hexadecimal string for the text in that game ROM.
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Select the hex string and click "Edit." Type in a new hex string to edit the text.
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Click "Overwrite." Click "Save" from the "File" menu. Select "OK."
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