Name: Capcom CPS-2
Brand: Capcom

Hardware variants

CPS-2 A-Board

1993-08

Mainboard (with encryption)

A universal A-Board paired with swappable B-Boards (game cartridges) let operators change games without replacing the whole machine. The A-Board's Suicide Battery dies, however, and the entire board with it.

CPS-2 B-Board (game cartridges)

1993-2003

Swappable ROM cartridges

Capcom released 50+ titles for CPS-2 between 1993 and 2003, each on a discrete B-Board. Collectors today preserve dying boards via 'Phoenix Edition' unauthorized decryption + reflash builds.

Curator Notes

What this machine stands for

CPS-2 was the core hardware behind 1990s arcade fighting's golden age. Two upgrades over CPS-1 mattered: a palette expansion from 256 to 4,096 colours (which made Street Fighter Alpha's and Vampire Savior's elaborate sprite animation possible), and ROM encryption (which prevented bootleg reproduction). The encryption gave Capcom a decade of secure royalties from every board sold.

Turning point

The 1993 launch introduced ROM encryption + a 'Suicide Battery' anti-copy mechanism — the encryption key sat in battery-backed SRAM inside the A-Board. When the battery died, the SRAM lost the key, and the board became a permanent brick. This made bootleg copying economically impossible in the 1990s but means that 2010s-era CPS-2 boards have been dying en masse from battery leakage — one of retro collecting's most painful ongoing issues.

Regional memory

In the Chinese-speaking world, CPS-2 was the standard fixture of every 1990s arcade fighting section. Every Street Fighter II Turbo, Vampire Savior, and Marvel vs. Capcom in arcades from Taipei to Hong Kong to Shenzhen ran on a CPS-2 — the physical hardware behind a decade of fighting-game memory.

Curated picks

Super Street Fighter II Turbo (1994)

CPS-2's flagship. Capcom's most refined Street Fighter II — Akuma's first arcade appearance is here, and the build is still considered canonical by the fighting game community.
Marvel vs. Capcom (1998)

The Marvel + Capcom crossover fighter. Late-life CPS-2 flagship and one of the earliest commercially successful examples of Western comic IP entering arcade fighting.
Vampire Savior (1997)

Darkstalkers 3, the apex of CPS-2 sprite animation. 200+ frames per character — fluid enough that no 32-bit home port had fully matched it as of 1997.

In August 1993, Capcom launched CPS-2 (Capcom Play System 2) as the successor to the 1991 CPS-1 hardware that ran Street Fighter II. CPS-2 carried Capcom through the height of the 1990s fighting-game era.

Technically it was a 16-bit refinement: a 68000 CPU clocked from 12 to 16 MHz, palette grown from 256 to 4,096 colours, audio upgraded to Q-Sound stereo (Capcom’s proprietary positional audio that needed specific headphones to hear the 3D effect), and OKI PCM samples. What actually changed the industry, though, was ROM encryption combined with a ‘Suicide Battery’ design.

CPS-2 program ROMs were protected by Capcom’s encryption ASIC, with the decryption key stored in battery-backed SRAM on the A-Board. Battery dies → SRAM loses memory → key gone → board permanently bricked. In the 1990s, this made bootleg reproduction economically impossible, and Capcom collected ten years of stable per-board royalties.

The cost arrived in the 2010s: original CPS-2 boards have been failing en masse from battery leakage and exhaustion. The collector community has responded with Phoenix Edition unofficial decryption-plus-reflash repairs. The number of still-working original CPS-2 boards keeps shrinking — one of retro hardware’s most painful ongoing concerns.

The CPS-2 software lineup is the spine of 1990s arcade fighting: Super Street Fighter II Turbo (1994), Vampire Savior (1997), Marvel vs. Capcom (1998), X-Men vs. Street Fighter (1996). These titles dominated the fighting section of every Chinese-speaking arcade for nearly a decade.

CPS-2 was produced until 2003 — a ten-year platform life with 50+ titles. It funded Capcom’s most lucrative period after the breakout of Street Fighter II in 1991. The successors — CPS-3 (1996) and the 2000s Naomi-era boards — never reached CPS-2’s market scale.

Capcom CPS-2

Specifications

Release dates

Lifetime sales