Whether you are building an EverDrive collection, curating a RetroArch playlist, or simply wanting to understand the NES's true breadth, the 1G1R philosophy offers clarity, efficiency, and respect for the medium.
If you use tools like ScreenScraper for box art, 1G1R means you only scrape 700+ games instead of 3,000+, saving hours of time. How to Build Your Own NES 1G1R Set
A more user-friendly alternative with a graphical interface.
Use the No-Intro database to generate a DAT file for the NES.
| Priority | Criterion | Example Justification | |----------|-----------|------------------------| | 1 | Revision E (final bug-fixed release) | Fixes game-breaking bugs. | | 2 | Rev A if no final revision exists | Original release as baseline. | | 3 | Original region (Japan for Famicom/NES cross-platform) | Historical authenticity. | | 4 | No-Intro verified [!] dump | Ensures bit-perfect copy. | | 5 | English-friendly (if original non-English) | Accessibility for Western users. | | 6 | Translated/hacked ROMs (excluded by default) | Not original commercial release. |
The NES era was a wild west of regional licensing, hardware quirks, and third-party chaos. Several factors make the NES uniquely suited for a 1G1R treatment.
The NES library is massive, but the number of unique games is much smaller than the number of files available online. When you download a "Complete ROM Set," you aren't just getting 700+ unique games; you’re getting thousands of files. These include:
| ROM Variant | Region | Revision | Key Difference | Included in 1G1R? | |-------------|--------|----------|----------------|---------------------| | SMB3 (Japan) | JP | 0 | Original Famicom release, no battery save | Possibly (original region) | | SMB3 (USA) | US | 0 | Changed graphics (e.g., “Kuribo’s Shoe” renamed) | No (redundant) | | SMB3 (USA) | US | 1 | Fixes P-Wing duplication glitch | | | SMB3 (Europe) | EU | 0 | Slower PAL speed, translated text | No (slower, later) | | SMB3 (PRG0) hack | USA | Hack | Adds save feature | No (not original) |
Speedrunners require specific revisions (e.g., Zelda II v1.0 has the “fairy spell” glitch; v1.1 fixes it). A 1G1R set that keeps only the later revision harms that use case.
A good NES 1G1R set doesn't just pick one region arbitrarily. It includes Doki Doki Panic AND Super Mario Bros. 2 as separate "One Games" because they are fundamentally different experiences.
If you use a frontend like , RetroArch , or EmulationStation , 1G1R is essential. It ensures that when you scrape for box art and manuals, you don't end up with duplicate entries or incorrect metadata for a regional variant you never intended to play. How to Create an NES 1G1R Set
Whether you are building an EverDrive collection, curating a RetroArch playlist, or simply wanting to understand the NES's true breadth, the 1G1R philosophy offers clarity, efficiency, and respect for the medium.
If you use tools like ScreenScraper for box art, 1G1R means you only scrape 700+ games instead of 3,000+, saving hours of time. How to Build Your Own NES 1G1R Set
A more user-friendly alternative with a graphical interface. nes 1g1r
Use the No-Intro database to generate a DAT file for the NES.
| Priority | Criterion | Example Justification | |----------|-----------|------------------------| | 1 | Revision E (final bug-fixed release) | Fixes game-breaking bugs. | | 2 | Rev A if no final revision exists | Original release as baseline. | | 3 | Original region (Japan for Famicom/NES cross-platform) | Historical authenticity. | | 4 | No-Intro verified [!] dump | Ensures bit-perfect copy. | | 5 | English-friendly (if original non-English) | Accessibility for Western users. | | 6 | Translated/hacked ROMs (excluded by default) | Not original commercial release. | Whether you are building an EverDrive collection, curating
The NES era was a wild west of regional licensing, hardware quirks, and third-party chaos. Several factors make the NES uniquely suited for a 1G1R treatment.
The NES library is massive, but the number of unique games is much smaller than the number of files available online. When you download a "Complete ROM Set," you aren't just getting 700+ unique games; you’re getting thousands of files. These include: Use the No-Intro database to generate a DAT file for the NES
| ROM Variant | Region | Revision | Key Difference | Included in 1G1R? | |-------------|--------|----------|----------------|---------------------| | SMB3 (Japan) | JP | 0 | Original Famicom release, no battery save | Possibly (original region) | | SMB3 (USA) | US | 0 | Changed graphics (e.g., “Kuribo’s Shoe” renamed) | No (redundant) | | SMB3 (USA) | US | 1 | Fixes P-Wing duplication glitch | | | SMB3 (Europe) | EU | 0 | Slower PAL speed, translated text | No (slower, later) | | SMB3 (PRG0) hack | USA | Hack | Adds save feature | No (not original) |
Speedrunners require specific revisions (e.g., Zelda II v1.0 has the “fairy spell” glitch; v1.1 fixes it). A 1G1R set that keeps only the later revision harms that use case.
A good NES 1G1R set doesn't just pick one region arbitrarily. It includes Doki Doki Panic AND Super Mario Bros. 2 as separate "One Games" because they are fundamentally different experiences.
If you use a frontend like , RetroArch , or EmulationStation , 1G1R is essential. It ensures that when you scrape for box art and manuals, you don't end up with duplicate entries or incorrect metadata for a regional variant you never intended to play. How to Create an NES 1G1R Set
