| 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 |
| An Introduction to Understanding/Hacking 8 Bit Graphics | Prez | A guide to working with graphics using only a hex editor. | Graphics Hacking | Multiple | N/A | 1.0 | Int | 14 May 2008 |
| AnusP's Advanced Hacking Tutorial | AnusP | One of the first documents to give detailed information on NES and SNES pointers. Still a very valuable resource. | Pointer Hacking | Multiple | N/A | 1.2 | Int | 25 Mar 1998 |
| 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 |
| 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 |
| 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 |
| Console Graphics Document | Klarth | Descriptions of graphics storage methods for the NES, SNES, NGPC, Virtual Boy, SMS, Game Gear, WSC, and Genesis. | Graphics Hacking | Multiple | N/A | 0.7 | Int | 18 Jul 2000 |
| Corrupt Corrupting | Weasel | This document is designed to help people with the grand art of rom corrupting. For those of you who don’t know (you know who you are!), rom corrupting is a long, (occasionally)boring process of finding data in a Rom. If you don’t know what …. | Miscellaneous | Multiple | N/A | 1.0 | Beg | 01 Jan 2002 |
| D88 File Structure | JPN Translations | Describes the the structure of the D88, a disk format commonly used in computers such as the PC88 and the X1. The original text was in Japanese. | File Formats | Multiple | N/A | 1.0 | Int | 06 Nov 2009 |
| Definitive Guide to ROM Hacking Tables, The | InVerse | This is the end all and be all of ROM hacking table documentation. | Table Files | Multiple | N/A | 1.0 | Beg | 03 Sep 2001 |
| Description of the Sega FILM/CPK File Format | Mike Melanson | A description of the FILM A/V container developed by Sega for use on several CD-ROM game consoles. | File Formats | Multiple | N/A | 2.0 | Beg | 13 Mar 2003 |
| Editing Fonts without the Aid of a Graphics Editor | Partial Translations | A document explaining how to edit bitplane fonts with a hex editor. | Graphics Hacking | Multiple | N/A | 1.0 | Int | 01 Oct 2009 |
| Final Fantasy Advance and Chrono Trigger DS Font Specifications | Dragonsbrethren | Explains the format used by the fonts in Final Fantasy IV, V, and VI Advance. Also covers Chrono Trigger on the DS, but the information is untested with that game.
Now contains information about editing the fonts with the [url=http://www.romhackin…. | File Formats | Multiple | Multiple Games | 1.2 | Int | 24 Jul 2009 |
| Hacking Save States | The Spook | A general introductory document on the subject of save state hacking. | Save State Hacking | Multiple | N/A | 1.0 | Beg | 01 Jan 1998 |
| Hex Lesson | solid t-bone | This document explains the basics of hex editing and it’s many uses. | Miscellaneous | Multiple | N/A | 1.0 | Beg | 09 Dec 2002 |
| How to Hack Experience Levels | tcaud | Step-by-step guide to hacking experience levels in games that have them. | Miscellaneous | Multiple | Multiple Games | 1.0 | Beg | 04 Jun 2015 |
| How To Make Table Files | Kevtav | Another guide to making table files. | Table Files | Multiple | N/A | 0.10 | Beg | 27 Jan 2001 |
| Kiwibonga's Table-File Making Doc | Kiwibonga | A basic tutorial on table creation. | Table Files | Multiple | N/A | 1.0 | Beg | 30 Oct 2000 |
| Lz_comp2 | Haruhiko Okumura | A very old (ca. 1989) package including a document explaining various compression algorithms (LZSS, LZW, Huffman, LZARI, LZHUF) and the standard ANSI C source code to various (de)compression utilities implementing the described algorithms (LZARI, LZH…. | Source Code | Multiple | N/A | 2.0 | Adv | 10 Apr 1989 |
| MOS MCS 6500 Microcomputer Family Programming Manual | OEM | The MOS MCS 6500 Microcomputer Family Programming Manual is part of the KIM-1 hardware development kit. This document applies to all the 65xx CPUs with slight variations, such as the 6502 in the NES, 6510 in the C-64, 6507 in the Atari 2600, the list…. | Assembly | Multiple | N/A | 1.0 | Int | 01 Jan 1976 |
