| P2M Extractor (P2ME)||Pyriel||This is a command-line utility for extracting the contents of GameShark .p2m files. We discovered that this was a rather invaluable tool in testing, as the GameShark does quirky things when it imports the files, such as dumping cheats with the same n….||Miscellaneous||PS2||N/A||Win||1.0.1||27 Mar 2008|
| OverEdit||Jonathan Wilson||A overworld map editor for Super Mario World.||Game Specific||SNES||Super Mario World||Win||1.1||01 Jan 2001|
| OverAll||MarkGrass||Archive file extractor/creator for the game: Overblood. Currently supports ALL and ROM file archives.
This utility is best used when the Debug Menu is unlocked and functional [url=http://www.romhacking.net/forum/index.php/topic,16630.0.html](Link)….||Game Specific||PSX||Overblood||Win||18.104.22.168||10 Jul 2013|
|Oswan Tracer||g8z et al||This is a tracing emulator based off of oswan 0.70. This uses a “hook” system which is similar to a breakpoint, except it logs where the hook occurs to a text file instead of snapping a debugger. Layer toggling, memory logging and dumping i….||Debuggers / Special Emulators||WS||N/A||Win||0.70||16 May 2017|
| Oriton||Oraculum||The program is designed for creating and editing tables. There is support for Unicode, hexadecimal values of any length, Kruptar codes and all that can greatly facilitate the creation of tables.||Table Generators||N/A||N/A||Win||2.050||12 May 2012|
| Opera FS Reader v0.03||Timo Weirich||This is an utility to read and extract files from 3DO disks. It works both with real CDs and with ISOs.This is a pre-release.
- Fallback to ASPI (for Win9x/ME) may not work and may crash your system
|Miscellaneous||N/A||N/A||Win||0.03||11 Feb 2007|
| OpenSearch||mcpancakes||OpenSearch is a command line relative searcher and table file generator.
Features (excerpted from the readme):
- Relative searching
- Wildcard characters (*)
- Find both upper and lowercase characters (-autocaps letter)[….
|Searching||N/A||N/A||Indep||0.1||12 Apr 2009|
| OnionText||Chaos Rush||This program is a text editor for Final Fantasy III, with its main feature being dynamic text compiling, in addition to text bank importing and exporting.
What this tool features:
- edit NPC dialogue, cutscene dialogue, item names, spell names,….
|Script Extraction / Insertion||NES||Final Fantasy III||Indep||1.2||24 Jun 2019|
| Omniconvert||Pyriel||This is the new & improved MAXConvert, so-named because it isn’t so much tied to MAXCrypt any more.
Decrypt and encrypt codes for all devices. That means all versions of CodeBreaker, Action Replay, GameShark and Xploder. It also does the ….||Miscellaneous||PS2||N/A||Win||1.1.1||23 Mar 2019|
| OllyDbg||Oleh Yuschuk||OllyDbg is a powerful debugger for the Windows platform. Some of its features are: doesn’t require installation and it’s free; directly loads and debugs DLLs; traces registers, recognizes procedures, loops, API calls, switches, tables, cons….||Debuggers / Special Emulators||PC||N/A||Win||1.10||23 May 2004|
| Okami HD (PC) Encrypter/Decrypter||ffgriever||A simple encrypter/decrypter for Okami HD (PC).
In this port pretty much all files are encrypted with Blowfish (256bit key). The application allows for decryption and successful re-encryption of files after changing. I needed it to port our….||Game Specific||PC||Okami HD||Win||1.0||15 Dec 2017|
| Ogre Battle LZSS||FinS||Compressor/Decompressor for Ogre Battle March of the Black Queen.
Drag and drop support(files must have extension of .lz(compressed) or .bin(uncompressed)). Otherwise it can be used the same as usual on command line.
Source code is included, pl….||Game Specific||SNES||Ogre Battle: The March of the Black Queen||Win||1.0||07 Sep 2001|
| Ocarina Text Editor||Sage_of_Mirrors||A tool to edit text in The Legend of Zelda: Ocarina of Time.||Script Extraction / Insertion||N64||The Legend of Zelda: Ocarina of Time||Win||1.0||04 May 2016|
| OBEdit||FFaddic||OBEdit is an editor for Ogre Battle: March Of The Black Queen. The editor works for both the SNES and PSX versions.
Current features of the editor:
- Character Stats
- Enemy Group Formations
- Ally Group Formations
- Promotion Lists
|Game Specific||Multiple||Ogre Battle: The March of the Black Queen||Win||5.1||22 Jul 2019|
|O.D.T. De/Compressor Set||Zoinkity||Here is a compressor and decompressor combo for O.D.T. (N64) Joy! Source is provided, for what it is worth.
No provision is made to automatically extract binaries from the ROM however, so you will need a hex editor and some patience.||Miscellaneous||N64||O.D.T.||DOS||1.0||02 Nov 2008|
| Nuts & Milk Editor||smkdan||It manages free space as you save so larger or smaller levels are possible. You can reduce (not increase) the amount of levels in the game and change their type. The readme has a few other details if you’re interested.||Level Editors||NES||Nuts & Milk||Win||1.2||13 May 2008|
| Nuts & Bolts||Trax||Level editor for Nuts & Milk.||Game Specific||NES||Nuts & Milk||Mac OS X||1.0||01 Jul 2008|
| Nushi Tsuri Adventure: Kite no Bouken Compression/Decompression Tools||JaytheHam||A Windows GUI program which both compresses and decompresses files for and from the GameBoy Color game “Nushi Tsuri adventure- Kite no Bouken.” It is generally more efficient than the actual algorithm used in the creation of the game.
So….||Compression / Decompression||GB||Nushi Tsuri Adventure: Kite no Bouken||Win||1.0||18 Aug 2011|
| NUPS||Nintenlord||UPS patcher for .NET or Mono. Can create patches, patch files and get the offsets changed by the patch.||Patching||N/A||N/A||Indep||1.3||13 May 2009|
|NSRT Linux||Nach||NSRT 3.4 for Linux, commandline version. NSRT is a SNES-specific ROM utility designed to ensure that your ROMs are valid, and includes functions to add/remove headers, deinterleave ROMs, fix overdumps, and even add an NSRT header so that ZSNES will a….||Miscellaneous||SNES||N/A||Unix||3.4-linux||13 May 2008|