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RetroBIOS

FB Alpha 2012 Neo Geo

FB Alpha 2012 Neo Geo emulates SNK Neo Geo.

Its BIOS and game sets must come from the FB Alpha v0.2.97.29 romset. Which version each core reads.

About this profile
Detail Value
Type libretro
Classification Frozen snapshot
Source https://github.com/libretro/fbalpha2012_neogeo
Upstream https://www.fbalpha.com
Version v0.2.97.29, stated in src/burner/libretro/libretro.cpp
Revision libretro/fbalpha2012_neogeo@e092097037d4
Profiled 2026-03-23
Profile YAML, JSON
Cores fbalpha2012_neogeo
Systems SNK Neo Geo
Romset FB Alpha v0.2.97.29
Technical notes

Frozen snapshot of Final Burn Alpha v0.2.97.29 (circa 2012), Neo Geo only. Exists for RAM-constrained platforms. Most users should use FBNeo.

Neo Geo requires a BIOS ROM set (neogeo.zip) placed alongside game ROMs. The BIOS set contains ~35 variants (src/burn/drv/neogeo/d_neogeo.cpp:903-981), all BRF_BIOS:

68K main BIOS (BRF_SELECT, one active at a time): asia-s3.rom 0x91b64be3 MVS Asia/Europe ver. 6 (default) sp-s2.sp1 0x9036d879 MVS Asia/Europe ver. 5 sp-s.sp1 0xc7f2fa45 MVS Asia/Europe ver. 3 (4 slot) sp-u2.sp1 0xe72943de MVS USA ver. 5 (2 slot) sp-e.sp1 0x2723a5b5 MVS USA ver. 5 (6 slot) vs-bios.rom 0xf0e8f27d MVS Japan ver. 6 sp-j2.sp1 0xacede59c MVS Japan ver. 5 sp1.jipan.1024 0x9fb0abe4 MVS Japan ver. 3 (4 slot) sp-45.sp1 0x03cc9f6a NEO-MVH MV1C (512 KB) japan-j3.bin 0xdff6d41f MVS Japan (J3) neo-po.bin 0x16d0c132 AES Japan neo-epo.bin 0xd27a71f1 AES Asia neodebug.bin 0x698ebb7d Development Kit sp-1v1_3db8c.bin 0x162f0ebe Deck ver. 6 (Git Ver 1.3) uni-bios_4_0.rom 0xa7aab458 Universe BIOS 4.0 (+ 14 more Universe BIOS variants, versions 1.0-3.3) neopen.sp1 0xcb915e76 NeoOpen BIOS v0.1 beta

System ROMs (always required): sm1.sm1 0x94416d67 Z80 BIOS (sound program) sfix.sfix 0xc2ea0cfd Text layer tiles (fix layer) 000-lo.lo 0x5a86cff2 Zoom table

Special sets: 236-bios.sp1 0x853e6b96 Trackball BIOS sp-4x.sp1 0xb4590283 PCB BIOS spj.sp1 0x148dd727 PCB BIOS (Japan) neocd.bin 0xdf9de490 Neo Geo CD BIOS

neogeo.zip is a parent ROM set, loaded from g_rom_dir alongside game ZIPs. g_system_dir is set (src/burner/libretro/libretro.cpp:3016) but never used for file loading.

neogeo.zip is read from the same directory as the game ROM ZIPs, as the .info note "BIOS files must be inside the ROM directory" states.

No BIOS or firmware files required.

Next steps

Section titled “Next steps”
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Maintained by Abdess on GitHub. Report a problem.

Packs from release v2026.10.10, .

MIT for the tooling and metadata. BIOS and firmware files are third-party system software, preserved for personal backup, archival and interoperability.