The Neo Geo, named after the Greek word for "New World," was a video game platform introduced in 1990 by the Japanese company SNK Corporation. It was first released in two formats: an arcade system board called the Multi Video System (MVS) and a home console named the Advanced Entertainment System (AES). In 1994, a version using CD-ROMs, called the Neo Geo CD, was also released. The MVS had multiple cartridge slots, allowing operators to swap games easily, which was different from other arcade machines of the time that had only one game per cabinet.

The Neo Geo was advertised as the first 24-bit system. Its main processor was a 16/32-bit chip called the 68000, paired with an 8-bit Z80 chip for extra tasks. Its graphics system used a 24-bit data bus, making it one of the most powerful game systems when it was released. It outperformed many other arcade systems, including Capcom’s CPS, which was not better until 1993 with the CP System II.

The AES was first sold only as a rental console for game stores in Japan, called the Neo Geo Rental System. High production costs prevented SNK from selling it directly to consumers at first. Later, due to strong demand, it was sold as a luxury console. Adjusting for inflation, the AES cost $649.99 in 1990, which is equal to about $1,540 in 2025. The AES used the same hardware as the MVS, allowing home players to experience arcade-quality games. However, the cartridges for the two systems were not interchangeable because of differences in size, leading to different games being released for each.

The MVS was popular in the 1990s because of its low cost, multiple cartridge slots, and small size. Many successful game series were created for the platform, including Fatal Fury, Art of Fighting, Samurai Shodown, World Heroes, The King of Fighters, Twinkle Star Sprites, and Metal Slug. Game development for the MVS continued until 2004, making it the longest-supported arcade system ever. The AES had limited sales in Japan and very few in the United States due to its high price. However, it is now considered a collectible item. Worldwide, one million MVS units were sold, and 980,000 AES and CD units combined were produced.

History

The Neo Geo hardware was developed from an older SNK/Alpha Denshi M68000 arcade platform used in Time Soldiers in 1987. This platform was later improved for P.O.W.: Prisoners of War in 1988. Unlike other arcade systems of the time, the SNK/Alpha Denshi hardware used sprite strips instead of tilemap-based backgrounds. The Neo Geo was created by Alpha Denshi’s Eiji Fukatsu, who added features like sprite scaling using scaling tables stored in ROM, support for more data on cartridges, and better sound hardware. The system’s final hardware specifications were completed in December 1989.

Takashi Nishiyama left Capcom, where he had designed the fighting game Street Fighter (1987), to join SNK after they invited him. At SNK, he helped develop the Neo Geo. He suggested using ROM cartridges like a game console and proposed a home console version of the system. His ideas aimed to make the system more affordable for regions like China, Hong Kong, Taiwan, Southeast Asia, Central America, and South America, where selling arcade games was difficult due to piracy. Nishiyama also created the Fatal Fury fighting game series as a follow-up to Street Fighter. He worked on other fighting game series, including Art of Fighting and The King of Fighters, as well as the run-and-gun game series Metal Slug.

The Neo Geo was announced and shown on January 31, 1990, in Osaka, Japan. SNK displayed several Neo Geo games at Japan’s Amusement Machine Operators’ Union (AOU) show in February 1990, including NAM-1975, Magician Lord, Baseball Stars Professional, Top Player’s Golf, and Riding Hero. The system was introduced overseas at Chicago’s American Coin Machine Exposition (ACME) in March 1990. It was released in Japan on April 26, 1990. At first, the AES home system was only available for rent to businesses like hotels, bars, and restaurants. After seeing demand, SNK began selling the console to consumers in 1991.

The Neo Geo’s graphics and sound were better than other home consoles, computers like the X68000, and some arcade systems. Unlike earlier systems, the Neo Geo AES was designed to match the quality of the arcade MVS system. The MVS was one of the most powerful arcade units at the time, using interchangeable cartridges to load game ROMs instead of custom hardware for each game.

In the United States, the console was originally planned to cost $599, including two joysticks and a game (Baseball Stars Professional or NAM-1975). The price later increased to $649.99 (equivalent to $1,536 in 2025), and the package was called the Gold System. It was later bundled with Magician Lord and Fatal Fury. The Silver System, priced at $399.99, included one joystick and no game. Other games cost about $200 or more. Because the Neo Geo was much more expensive than competitors, it reached only a small group of buyers. However, its full compatibility with arcade games meant SNK did not need to spend extra money on ports or marketing, as the MVS’s success automatically supported the AES.

In January 1991, Romstar released an arcade conversion kit for the Neo Geo in the United States, allowing arcade cabinets to be turned into Neo Geo systems. That same month, the Neo Geo home console debuted at the Consumer Electronics Show (CES) in North America. SNK announced that most Neo Geo games would be released in arcades first, with home versions following about six months later.

When real-time 3D graphics became common in arcades, the Neo Geo’s 2D hardware could not produce them. Despite this, Neo Geo arcade games remained profitable until the mid-1990s. The system was one of three 1995 winners of the American Amusement Machine Association’s Diamond Awards, which are based on sales. SNK released a new home console called the Neo Geo CD in 1994 and an arcade system called the Hyper Neo Geo 64 in 1997. However, these systems were not popular and had few games.

SNK stopped making home consoles by the end of 1997 but continued developing software for the original 2D Neo Geo. Even though the system was old by the late 1990s, it still had new releases, like the critically praised The King of Fighters 2002. The last official game for the Neo Geo, Samurai Shodown V Special, was released in 2004, 14 years after the system’s introduction.

On August 31, 2007, SNK stopped providing maintenance or repairs for Neo Geo home consoles, handhelds, and games.

Technical specifications

Each joystick controller measures 280 mm (width) × 190 mm (depth) × 95 mm (height) (11 × 8 × 2.5 in.) and has the same four-button layout as the arcade MVS cabinet.

Arcade machines use a memory card system that allows players to save a game and return to it later. These cards can also be used to continue playing on the SNK home console with the same name.

The arcade version of the video game hardware is called the "MVS," or Multi Video System. It comes in 1-slot, 2-slot, 4-slot, and 6-slot variations, which differ in the number of game cartridges they can hold. The home console version is called the "AES," or Advanced Entertainment System. Early versions of the hardware included daughterboards, which helped improve the quality of the video output.

The MVS and AES hardware can run the same machine code. Players can move EPROMs from one system to the other, and the game will still work. Every game ROM, whether for home or arcade use, contains the same program details. However, arcade and home cartridges have different pinouts. This design prevents arcade operators from using cheaper home cartridges in arcades. In some home versions, the arcade version of a game can be unlocked by entering a special code.

The original ROM size limit was up to 330 megabits, which is why the system displays "Max 330 Mega Pro-Gear Spec" when it starts. Some games larger than 100 megabits, like Top Hunter, showed an animation called "The 100Mega Shock!" after this message. Later, cartridges with bank switching memory technology increased the maximum size to about 716 megabits. These updated cartridges caused the system to display "Giga Power Pro-Gear Spec" during startup or attract mode.

The system uses seven different processors to handle visuals, audio, and gameplay.

• CPU: Motorola 68000 (often from Toshiba or Hitachi) running at 12 MHz (16/32-bit instructions at 1.75 MIPS)
• Coprocessor: Zilog Z80 running at 4 MHz (8/16-bit instructions at 0.58 MIPS, also used for audio)

• Main 68000 RAM: 64 KB (32 KB SRAM ×2)
• Video RAM: 84 KB SRAM (64 KB Main VRAM, 16 KB Palette memory, 4 KB Fast video sprite RAM)
• Z80 sound RAM: 2 KB SRAM
• Battery-backup save NVRAM: 64 KB SRAM

On-board ROM: 512 KB

• Zoom look-up table: 128 KB
• Fix layer graphics: 128 KB
• Z80 sound: 128 KB
• 68000 BIOS: 128 KB

The SNK custom video chipset allows the system to display sprites made of vertical strips of tiles (16×16 pixels each), up to 32 tiles tall (512 pixels). It can show up to 380 sprites on the screen at once, limited to 96 per scanline. Each tile can use a palette defining 15 colors (+ transparency). The system can display 3840 colors at the same time. Unlike most other consoles, the Neo Geo does not use scrolling tilemap backgrounds. Instead, it uses a single non-scrolling tilemap layer called the fix layer, and scrolling backgrounds are created by arranging sprites.

• GPU chipset: SNK LSPC2-A2 (24 MHz), SNK PRO-B0, SNK PRO-A0, NEO-B1, NEO-GRC
• GPU graphics data bus: 24-bit
• Display resolution: 320×224 px (many games use the center 304 px), progressive scan
• Color palette: 65,536 (16-bit, RGB666 format)
• Maximum colors on screen: 3840
• Maximum sprites on screen: 380
• Minimum sprite size: 16×16 px
• Maximum sprite size: 16×512 px
• Maximum sprites per scanline: 96
• Maximum sprite pixels per scanline: 1536 px
• Static tilemap plane: 1 (512×256 px fix layer)
• Aspect ratio: 4:3
• A/V output: RF, composite video/RCA audio, RGB (with 21-pin FCG-9 or European SCART cable)

The onboard Yamaha YM2610 sound chip provides 14 sound channels.

• Sound chip: Yamaha YM2610
• FM synthesis channels: 4 (4 operators per channel)
• SSG channels: 3
• PCM channels: 7 (6 ADPCM-A at 18.5 kHz,

Reception

The Neo Geo MVS became very successful worldwide when it was released in arcades. It was one of the highest-earning machines in arcades in North America and Australia in 1990. In North America, three Neo Geo games were among the top ten highest-selling arcade software versions in December 1992: Art of Fighting was number one, World Heroes was number two, and King of the Monsters 2 was number ten. The Neo Geo MVS received Diamond awards from the American Amusement Machine Association (AAMA) for two years in a row. These awards recognized it as one of America’s top four best-selling arcade machines in 1992 (alongside Street Fighter II: Champion Edition, Mortal Kombat, and Terminator 2) and in 1993. In 1994, the Neo Geo MVS was the best-selling arcade printed circuit board (PCB) worldwide.

In 1990, the Neo Geo received the Special Award at the Gamest Awards. In 1991, it won the "Most Innovative New Technology" award at the AMOA Awards, held by the Amusement & Music Operators Association (AMOA).

In 1993, GamePro gave the Neo Geo CD a "thumbs up" in a review. While they mentioned some problems, such as the system not being as powerful as the upcoming 3DO and having few games that were not fighting games, they praised the hardware and game collection. They recommended that players who could not afford the console (which cost $649.99) try the games in arcades.

The Neo Geo was the first home game console to include a removable memory card for saving game progress.

The GameTap subscription service has included a Neo Geo emulator and a small selection of Neo Geo games. In 2007, Nintendo announced that Neo Geo games would be available on the Wii’s Virtual Console, in partnership with D4 Enterprise. The first games released were Fatal Fury: King of Fighters, Art of Fighting, The King of Fighters '94, and World Heroes. Neo Geo games were also released on Xbox Live Arcade, PlayStation Network (called NEOGEO Station on PlayStation 3), and later on PlayStation 4, Xbox One, Windows, and Nintendo Switch through the Arcade Archives service under the ACA Neo Geo label. In 2019, Antstream Arcade included Neo Geo games during its early years.

After the console was no longer produced, people began creating new games for it, both as a hobby and for sale.

The Neo Geo has a group of collectors who value its games. Because only a few copies of some games were made compared to the large number of arcade games available, some rare Neo Geo games can cost more than $1,000. The most valuable game is the European AES version of Kizuna Encounter: Super Tag Battle. The MVS arcade system offers a less expensive option compared to the rare and expensive home cartridges. Complete arcade kits are very valuable. MVS cartridges, which are usually much cheaper, can be played on the AES home system using adapters.

In 2009, the Neo Geo was ranked 19th out of the 25 best video game consoles of all time by the website IGN.

Recreated hardware

Since the 2010s, SNK has brought back the Neo Geo in new designs with built-in games, created by SNK and approved third-party companies.

The Neo Geo X, a device with Neo Geo games already installed, was first sold in 2012 by TOMMO Inc. After one year, the product was not very popular because of its high cost and poor game copying quality. On October 2, 2013, SNK Playmore ended the agreement with TOMMO and ordered them to stop selling the product.

On June 9, 2018, SNK announced the Neo Geo Mini, a small, partly portable arcade cabinet that looks like the Japanese Neo Geo MVS. It includes 40 built-in SNK games and was released in Japan on July 24, 2018, to celebrate SNK’s 40th anniversary. The games are based on the AES home console versions, which have limited chances to continue. However, the Neo Geo Mini allows players to save and load their progress at any time, with up to four save files per game. It has a 320×224 pixel screen and can connect to a TV through an HDMI cable. It also has two ports for external control pads similar to the Neo Geo CD controllers.

SNK released an international version of the Neo Geo Mini outside Japan on October 15, 2018, and later in Japan on November 15, 2018. This version has the same features as the Japanese model but includes 14 different games (including all Metal Slug titles) and a different interface. Together, the Japanese and international versions have 54 unique SNK titles. On July 19, 2019, SNK announced that the original Neo Geo Mini and international version would no longer be sold.

In December 2018, a special Christmas-themed Neo Geo Mini was released, featuring nine games not included in earlier versions. On June 27, 2019, a limited "Samurai Shodown" edition was released in three colors (white, red, and blue) with a black version added later. This edition includes 40 games, all Samurai Shodown titles, and three new games not in previous versions. Another limited edition called "Samurai Spirits Kuroko" was released in Japan on September 30, 2019, with 48 games.

In September 2019, SNK announced the Neo Geo Arcade Stick Pro, a large white arcade stick with a joystick and eight buttons. It includes 20 built-in games and an HDMI port for connecting to a TV. It can also work with Neo Geo Mini units using an included adapter and is compatible with older Mini game pads. Initially, the 20 games were all fighting games, but SNK later added more through updates, bringing the total to 40.

In November 2020, a special Christmas edition of the Neo Geo Arcade Stick Pro was released. It includes a Neo Geo CD-style control pad, a cover for the stick, a ball cover, a sticker sheet, and a Neo Geo 30th anniversary artbook. All 40 games are included and unlocked from the start.

In August 2020, Unico announced the Neo Geo MVSX, an arcade-style table that can play MVS and AES games already installed on the system. It supports two players, has a 17-inch screen, and includes 50 pre-loaded games. A 32-inch stand is also available to make it look like a vintage MVS cabinet. It was sold in North America in November 2020.

In late 2023, Unico released another Neo Geo Mini designed like an MVS arcade cabinet. It could be bought with or without an additional red controller, similar to existing Mini controllers, and an HDMI cable. It includes 45 games, most of which match the MVSX version, but five games are missing.