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NEO.emu

Important Note: Make sure to use Neogeo zipped rom sets from a recent MAME set like 0.144 and higher. Do not use sets from Neorage or FBA since they are not 100% compatible. Also do not unzip or rename any game files.
Initial Setup:

Create a game directory on your device (named Neogeo for example), using a file manager app or your PC
Obtain neogeo.zip from a recent version of MAME and place it in the directory. If you're having trouble finding the right one, search Google for 'MAME Bios'
Obtain at least one game zip and place it in the directory, making sure it's on the compatibility list below. For example, if you want 'Metal Slug', you'll need the file mslug.zip
Launch NEO.emu and select 'Load Game', then navigate to the directory you previously made and select the game zip you want to run
Once you've navigated to the game directory, you may also select 'Load Game From List' to show the full titles for easier game selection

Neogeo-specific Options:

Emulate Timer: Enable the per-scanline timer used in some games for raster effects. 'Auto' enables it using a built-in list of games that require it (mostly soccer ones). Turn it off if you experience flickering graphics.
Make/Use Cache Files: Create and use .gno cache files when loading a game. These files speed up loading and reduce memory usage of games but may not work with all games yet. Loading a game the first time without a .gno file present will take 2x-3x longer, but once created the game will load around 10x faster.

FAQ:

Q: I'm stuck with 4 credits, how do I insert more?

A: When in console (AES) mode, you can't insert more credits just like the real Neogeo system. If you push start+select to access the Universe BIOS menu, most games have infinite life/credit cheats listed. Alternatively, to switch into arcade (MVS) mode: open the app menu, change the setting under Unibios Switches, and reset the game. Now push the select button to insert as many credits as you like.

Compatibility List (All sets were tested from MAME 0.144, larger ones require devices with at least 512MB of memory):

Runs, but has issues

Doesn't work yet on all ports

Note: No current ports use the C core so all issues with it are now marked 'OK'

Game Title	Filename	Compatibility Note
3 Count Bout	3countb.zip
2020 Super Baseball	2020bb.zip
Alpha Mission II	alpham2.zip
Andro Dunos	androdun.zip
Aggressors of Dark Kombat	aodk.zip
Art of Fighting	aof.zip
Art of Fighting 2	aof2.zip
Art of Fighting 3	aof3.zip
Bakatonosama Mahjong Manyuki	bakatono.zip
Bang Bang Busters	bbbuster.zip
Bang Bead	bangbead.zip
Blue's Journey	bjourney.zip
Blazing Star	blazstar.zip
Breakers	breakers.zip
Breakers Revenge	breakrev.zip
Baseball Stars Professional	bstars.zip
Baseball Stars 2	bstars2.zip
Burning Fight	burningf.zip
Crossed Swords	crsword.zip
Captain Tomaday	ctomaday.zip
Cyber-Lip	cyberlip.zip
Digger Man (prototype)	diggerma.zip
Double Dragon	doubledr.zip
Eight Man	eightman.zip
Fatal Fury Special	fatfursp.zip
Fatal Fury	fatfury1.zip
Fatal Fury 2	fatfury2.zip	Corrupt Graphics
Fatal Fury 3	fatfury3.zip
Football Frenzy	fbfrenzy.zip
Fight Fever	fightfev.zip
Battle Flip Shot	flipshot.zip
Galaxy Fight	galaxyfg.zip
Ganryu	ganryu.zip
Garou - Mark of the Wolves	garou.zip
Ghostlop (prototype)	ghostlop.zip
Goal! Goal! Goal!	goalx3.zip
Voltage Fighter - Gowcaizer	gowcaizr.zip
Ghost Pilots	gpilots.zip
Gururin	gururin.zip
Ironclad / Choutetsu Brikin'ger	ironclad.zip
The Irritating Maze	irrmaze.zip	Lockup
Jyanshin Densetsu - Quest of Jongmaster	janshin.zip
Jockey Grand Prix	jockeygp.zip	Lockup
Puzzled / Joy Joy Kid	joyjoy.zip
Far East of Eden - Kabuki Klash / Tengai Makyou - Shin Den	kabukikl.zip
Karnov's Revenge / Fighter's History Dynamite	karnovr.zip
Kizuna Encounter - Super Tag Battle	kizuna.zip
KOF 94	kof94.zip
KOF 95	kof95.zip
KOF 96	kof96.zip
KOF 97	kof97.zip
KOF 98	kof98.zip
KOF 99	kof99.zip
KOF 2000	kof2000.zip	Sound Issues
KOF 2001	kof2001.zip	Missing Graphics
KOF 2002	kof2002.zip	Sound Issues
KOF 2003	kof2003.zip	Lockup
King of the Monsters	kotm.zip
King of the Monsters 2	kotm2.zip
Last Blade / Bakumatsu Roman - Gekka no Kenshi	lastblad.zip
Last Blade 2 / Bakumatsu Roman - Dai Ni Maku Gekka no Kenshi	lastbld2.zip
League Bowling	lbowling.zip
Legend of Success Joe	legendos.zip
Last Resort	lresort.zip
Magical Drop 2	magdrop2.zip
Magical Drop 3	<

Neo Geo Rom Pack Usa