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:''This page describes defects in homebrew games. For defects in games prior to 1996, see [[Game bugs]].'' ...to being tested on emulators exclusively. It is often the case that early homebrew ROMs will not run correctly on hardware. Since the release of the [[PowerPa

The following is a list of games which rely on putting more than 8 sprites on a scanline. ...d, mainly due to bugs when exactly 8 sprites are present on a scanline. No games rely on the buggy behavior. See [[PPU_sprite_evaluation#Sprite_overflow_bug

...n the 1990s, running a wide selection of popular North American commercial games. ...ts|ROMs designed to test obscure behaviors]] and [[Tricky-to-emulate games|games relying on obscure behaviors]] is a good (though not perfect) predictor of

...rties for-profit. Most multicarts include a menu from which the individual games are selected; based on the choice made there, the menu code sets up the mul ...lticart inclusion. Instead, the multicart's circuit board switches between games in such a way that each game's code can run in the same memory environment

This is part of a family of Sunsoft mappers used by Japanese games: ([[iNES Mapper 089]], [[iNES Mapper 093]], [[iNES Mapper 184]]) ...oked up to the RAM, explaining the RAM enable bit. For homebrew and hacks, games with CHR ROM should use 89's banking behavior with fixed mirroring.

The following is a list of games which make use of [[PPU registers#Mask ($2001) > write |PPU register $2001] The following games set all 3 emphasis bits at once to dim the screen:

...y controller has an NES-compatible protocol, and has been used in homebrew games.

This mapper was allocated on 15-nov-2013 to implement some homebrew games, including Glider. FCEUX acquired support on r3029.

'''Action 53''' is a series of homebrew multicart releases, using a mapper designed by Damian Yerrick for this purp In the first volume, the menu and all games except ''STREEMERZ'' run in this mapper's [[BNROM]] compatibility mode.

...[INES Mapper 238|238]] plus GAL16V8 programmable logic. It is used for two games: * Version 7.5 of the homebrew hack ''Ultimate Mortal Kombat III''.

...be used in either [[Controller port pinout|controller port]], though most games will only allow you to use it in controller port #2, leaving port #1 for a ...official game used, but which may be useful for homebrew dance simulation games in the style of Dance Dance Revolution: side B rotated 90 degrees anticlock

Thus, some [[Program Compatibility|defective homebrew programs]] developed in this era will wait for [[PPUSTATUS]].7 to become fa Some newer homebrew programs have been known to display a diagnostic message if an emulator inc

...sed for some large multicarts from ''Pixel Games'' as well as for homebrew games such as:

...gend of Zelda'' and designed to accommodate the four hardest-to-obtain NES games in ''[[:wikipedia:Animal Crossing (video game)|Animal Crossing]]''. ...mes through ''AC'''s built-in emulator. There were several ways to receive games:

'''iNES Mapper 218''' is used by the homebrew Magic Floor game. The cartridge contains only one single PRG-ROM chip (and It has been used in two games, and one test ROM:

...der handling code mostly exists between $8000 and $80FE, and provides save games using the 1200 baud ('CUTS') and ''bit-reversed'' variant of Kansas City St For homebrew use, Chris Covell wrote a set of KCS [http://www.chrismcovell.com/TapeDump_

[[iNES Mapper 078]] was used for two games: ''Holy Diver'' and ''Uchuusen - Cosmo Carrier''. For homebrew, both Nestopia-1.4.0 and FCEUX-2.1.5 default to the 1scA/1scB mirroring pro

...ions, not just the official ones. A small number of games use them (see [[#Games using unofficial opcodes|below]]). == Games using unofficial opcodes ==

...dard. Further updates to UNIF are unlikely, and it is recommended that new games or rips requiring special mapper specifications use the [[NES 2.0]] format ...ted UTF-8 || comments about the game, especially licensing information for homebrew

Example games: ...OM boards used by Nintendo were subject to bus conflicts, and the relevant games all work around this in software.