| 6502 ASM Codes | Bongo` | A nice reference list of opcodes and mnemonics for the 6502 processor. | Assembly | NES | N/A | 1.0 | Beg | 10 Aug 1999 |
| 6502 Instruction Summary | CricketNE | Complete and detailed list of opcodes and mnemonics for the 6502 processor. | Assembly | NES | N/A | 1.0 | Beg | 01 Mar 2000 |
| 65xx Processor Data | MeMSO | This document describes in (almost) full detail exactly how the 65xx processors work. The document contains information for the following CPUs: 6502 (6507, 6510, etc), 65c02, Rockwell 65c02, 65cs02, 65ce02 (4510), HuC6280 and 65c816. | Assembly | Multiple | N/A | 2.0 | Beg | 28 Oct 2006 |
| A Beginner's Guide to NES ROM Hacking | Sliver X | An easy to follow guide to NES text replacement. | Text Hacking | NES | N/A | 2.1 | Beg | 10 Jun 2002 |
| Addendum to ZSNES Savestate Format | creaothceann | This addendum contains information on variables added to the ZSNES savestate format since the time the original format document was written by ZsKnight. | Save State Hacking | SNES | N/A | 1.0 | Beg | 06 Jan 2006 |
| Addrem | Killa B | A portable C library for adding and removing SNES headers. | Source Code | SNES | N/A | 1.0.0 | Beg | 29 May 2009 |
| Altering Objects in SM64 | Jensthecomposer | This document will explain how to move or change objects in Super Mario 64 Levels with a hex editor. | Game Specific | N64 | Super Mario 64 | 1.0 | Beg | 19 Jan 2007 |
| An Introductory Guide to Hacking Nintendo World Cup | Dacicus | This PDF document presents offsets and descriptions for much of the data needed to hack Nintendo World Cup, including team statistics, graphics, palettes, and passwords. It also contains information about RAM addresses that may be useful to hackers, …. | Game Specific | NES | Nintendo World Cup | 1.00 | Beg | 17 Jun 2008 |
| Apply FireFlower | D | PHP routine to apply a FireFlower Patch. Also supports applying Microsoft File Compare output as a patch. | Source Code | Multiple | N/A | 2.0 | Beg | 03 Jul 2006 |
| Baseball Simulator 1.000 Player & Team Editing Sheet | keithisgood | The Baseball Simulator Hacking Sheet is a .xlsx file detailing ROM locations for player and team statistics, as well as the normal ranges for each individual hitting and pitching stat. ROM locations for both vanilla Baseball Simulator 1.000 and the u…. | Game Specific | NES | Baseball Simulator 1.000 | 1.0 | Beg | 23 Apr 2014 |
| Battle City Title Screen Hacking | Googie | Here’s something that’ll help people who wants to hack the title screen in Battle City, enjoy. ;) | Game Specific | NES | Battle City | 1.0 | Beg | 28 Aug 2008 |
| BCEI Basic Text Replacement | PhilAM | An old document on an old method for text replacement. | Text Hacking | Multiple | N/A | 1.0 | Beg | 09 Apr 2002 |
| Beginner's Hexadecimal and Binary Guide | mevoid | A guide aimed at beginners to understand hexadecimal and binary. It includes images, and a really nice layout. Also includes exercises for beginners. | Miscellaneous | N/A | N/A | 1.0 | Beg | 21 Apr 2016 |
| Binary Land Data | Googie | This is the data necessary to edit the palettes in the game. Using the notes will make it a breeze since the data is stored in two different places in the ROM. | Game Specific | NES | Binary Land | 1.0 | Beg | 05 May 2008 |
| Bionic Commando Offset Document | Matrixz | Bionic Commando offset hacking notes from Matrixz. | Game Specific | NES | Bionic Commando | 4 | Beg | 13 Jan 2006 |
| Bionic Commando ROM Hacking | The Almighty Guru | Comprehensive document to Bionic Commando. Covers palettes, maps, and sprites, as well as many other ROM details. Anybody hacking Bionic Commando should have this document. | Game Specific | NES | Bionic Commando | 2005/09/12 | Beg | 09 Dec 2005 |
| Blaster Master Level Format | Benjamin Cutler | Documentation of the level data structure for Blaster Master. | Game Specific | NES | Blaster Master | 1.0 | Beg | 07 Mar 2004 |
| BMP/BPP Convert | D | These functions will re-arrange bitplane tile graphics into bitmap linear and vice-versa. They are designed to work on strings where every character represents a pixel, so they are only for use on up to 16-colors. You will need to merge plane or spli…. | Source Code | Multiple | N/A | 3.0 | Beg | 03 Jul 2006 |
| Bomberman II Level Hacking | DANGER X | A small document with some hex values of the game levels:
- Enemies Values
- Enemies data
- Stage Passwords for testing
- Arena Width Values
| Game Specific | NES | Bomberman II | 1.0 | Beg | 16 Dec 2015 |
| Bomberman Level Hacking | DANGER X | A small document with some hex values of the game levels:
- enemies values
- power ups values
- enemy points (for score)
| Game Specific | NES | Bomberman | 1.0 | Beg | 28 Sep 2015 |
![[NES] Super Mario Bros Level Editor - GreatEd](/utilities/screenshots/1468screenshot1.png "[NES] Super Mario Bros Level Editor - GreatEd")
