| Name | Description | Year | Manufacturer | Rom | Clone | Sample |
| basschalo | Sega Bass Fishing Challenge | 2009 | Sega | basschal | basschal | |
| bassdx | Sega Bass Fishing Deluxe (USA) | 1997 | Sega | | | |
| bassmate | Bassmate Computer | 1984 | Telko / Nintendo | | | |
| bassstr | BassStation Rack Analogue Synthesizer Module | 1995 | Novation | | | |
| batcir | Battle Circuit (Europe 970319) | 1997 | Capcom | | | |
| batcira | Battle Circuit (Asia 970319) | 1997 | Capcom | batcir | batcir | |
| batcird | Battle Circuit (Europe 970319 Phoenix Edition) (bootleg) | 1997 | bootleg | batcir | batcir | |
| batcirj | Battle Circuit (Japan 970319) | 1997 | Capcom | batcir | batcir | |
| batlball | Battle Balls (Germany, newer) | 1995 | Seibu Kaihatsu (Tuning license) | senkyu | senkyu | |
| batlballa | Battle Balls (Hong Kong) | 1995 | Seibu Kaihatsu (Metrotainment license) | senkyu | senkyu | |
| batlballe | Battle Balls (Hong Kong, earlier) | 1995 | Seibu Kaihatsu (Metrotainment license) | senkyu | senkyu | |
| batlballo | Battle Balls (Germany, earlier) | 1995 | Seibu Kaihatsu (Tuning license) | senkyu | senkyu | |
| batlballpt | Battle Balls (Portugal) | 1995 | Seibu Kaihatsu | senkyu | senkyu | |
| batlballu | Battle Balls (US) | 1995 | Seibu Kaihatsu (Fabtek license) | senkyu | senkyu | |
| batlbubl | Battle Bubble (v2.00) | 1999 | Banpresto (Limenko license?) | bangball | bangball | |
| batlgear | Battle Gear (Ver 2.40 A) | 1998 | Taito | taitotz | | |
| batlgr2 | Battle Gear 2 (v2.04J) | 2000 | Taito | taitotz | | |
| batlgr2a | Battle Gear 2 (v2.01J) | 2000 | Taito | batlgr2 | batlgr2 | |
| batlgr3 | Battle Gear 3 (Ver.2.01A) | 2002 | Taito | sys246 | | |
| batlzone | Battle Zone (bootleg of Mayday) | 1980 | bootleg (Video Game) | mayday | mayday | |
| batman | Batman | 1991 | Atari Games | | | |
| batman2 | Batman Part 2 | 1981 | bootleg | phoenix | phoenix | |
| batmanf | Batman Forever (4.0) | 1995 | Sega | | | genpin |
| batmanf1 | Batman Forever (1.02) | 1995 | Sega | batmanf | batmanf | genpin |
| batmanf2 | Batman Forever (2.02) | 1995 | Sega | batmanf | batmanf | genpin |
| batmanf3 | Batman Forever (3.0) | 1995 | Sega | batmanf | batmanf | genpin |
| batmanfr | Batman Forever (JUE 960507 V1.000) | 1996 | Acclaim | stvbios | | |
| batrider | Armed Police Batrider (Europe) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | | | |
| batriderc | Armed Police Batrider (China) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | batrider | batrider | |
| batriderhk | Armed Police Batrider (Hong Kong) (Mon Dec 22 1997) | 1998 | Raizing / Eighting | batrider | batrider | |
| batriderj | Armed Police Batrider (Japan, B version) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | batrider | batrider | |
| batriderja | Armed Police Batrider (Japan, older version) (Mon Dec 22 1997) | 1998 | Raizing / Eighting | batrider | batrider | |
| batriderk | Armed Police Batrider (Korea) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | batrider | batrider | |
| batridert | Armed Police Batrider (Taiwan) (Mon Dec 22 1997) | 1998 | Raizing / Eighting | batrider | batrider | |
| batrideru | Armed Police Batrider (USA) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | batrider | batrider | |
| batsugun | Batsugun | 1993 | Toaplan | | | |
| batsuguna | Batsugun (older, set 1) | 1993 | Toaplan | batsugun | batsugun | |
| batsugunb | Batsugun (Korean PCB) | 1993 | Toaplan | batsugun | batsugun | |
| batsugunbl | Batsugun (bootleg) | 1993 | Toaplan | batsugun | batsugun | |
| batsugunc | Batsugun (older, set 2) | 1993 | Toaplan | batsugun | batsugun | |
| batsugunsp | Batsugun - Special Version | 1993 | Toaplan | batsugun | batsugun | |
| battlane | Battle Lane! Vol. 5 (set 1) | 1986 | Technos Japan (Taito license) | | | |
| battlane2 | Battle Lane! Vol. 5 (set 2) | 1986 | Technos Japan (Taito license) | battlane | battlane | |
| battlane3 | Battle Lane! Vol. 5 (set 3) | 1986 | Technos Japan (Taito license) | battlane | battlane | |
| battlcry | Battlecry (Version E) | 1991 | Home Data | | | |
| battlcryc | Battlecry (Version C) | 1989 | Home Data | battlcry | battlcry | |
| battlcryp | Battlecry (Prototype) | 1989 | Home Data | battlcry | battlcry | |
| battlera | Battle Rangers (World) | 1988 | Data East Corporation | | | |
| battles | Battles (set 1) | 1982 | bootleg | xevious | xevious | battles |
| battles2 | Battles (set 2) | 1982 | bootleg | xevious | xevious | |
| battlex | Battle Cross | 1982 | Omori Electric Co., Ltd. | | | |
| battlnts | Battlantis (version G) | 1987 | Konami | | | |
| battlntsa | Battlantis (version F) | 1987 | Konami | battlnts | battlnts | |
| battlntsj | Battlantis (Japan, version E) | 1987 | Konami | battlnts | battlnts | |
| battroad | The Battle-Road | 1984 | Irem | | | |
| batvgc | Interactive M.A.G. Motion Activated Gear: The Batman - Villains of Gotham City | 200? | Thinkway Toys | | | |
| bay_d300 | Baywatch (3.00 Dutch) | 1995 | Sega | baywatch | baywatch | genpin |
| bay_d400 | Baywatch (4.00 English) | 1995 | Sega | baywatch | baywatch | genpin |
| bay_e400 | Baywatch (4.00 Dutch) | 1995 | Sega | baywatch | baywatch | genpin |
| bay_f201 | Baywatch (2.01 French) | 1995 | Sega | baywatch | baywatch | genpin |
| bay_g300 | Baywatch (3.00 German) | 1995 | Sega | baywatch | baywatch | genpin |
| bay1000c | BAY-1000C V1.01 | 198? | Mintek | ibm5170 | ibm5170 | |
| bayroute | Bay Route (set 3, World) (FD1094 317-0116) | 1989 | Sunsoft / Sega | | | |
| bayroute1 | Bay Route (set 1, US) (unprotected) | 1989 | Sunsoft / Sega | bayroute | bayroute | |
| bayrouteb1 | Bay Route (encrypted, protected bootleg) | 1989 | bootleg (Datsu) | bayroute | bayroute | |
| bayrouteb2 | Bay Route (Datsu bootleg) | 1989 | bootleg (Datsu) | bayroute | bayroute | |
| bayrouted | Bay Route (set 3, World) (bootleg of FD1094 317-0116 set) | 1989 | bootleg | bayroute | bayroute | |
| bayroutej | Bay Route (set 2, Japan) (FD1094 317-0115) | 1989 | Sunsoft / Sega | bayroute | bayroute | |
| bayroutejd | Bay Route (set 2, Japan) (bootleg of FD1094 317-0115 set) | 1989 | bootleg | bayroute | bayroute | |
| baywatch | Baywatch | 1995 | Sega | | | genpin |
| bazooka | Bazooka | 1976 | Project Support Engineering | | | |
| bazookabr | Bazooka (Brazil) | 1977 | Taito do Brasil | bazooka | bazooka | |
| bb_21up | 21 Up (Bellfruit) (Black Box) (5p Stake, £1 Jackpot) | 1979 | BFM | | | fruitsamples |
| bb_21upa | 21 Up (Bellfruit) (Black Box) (10p Stake, £2 Jackpot) | 1981 | BFM | bb_21up | bb_21up | fruitsamples |
| bb_bellt | Bell Trail (Bellfruit) (Black Box) (5p Stake, £1 Jackpot) | 1979 | BFM | | | fruitsamples |
| bb_cjack | Crackerjack (Bellfruit) (Black Box) (5p Stake, £2 Jackpot) | 1981 | BFM | bb_firec | bb_firec | fruitsamples |
| bb_dblit | Double It (Bellfruit) (Black Box) (10p Stake, £2 Jackpot) | 1981 | BFM | | | fruitsamples |
| bb_fiest | Fiesta (Associated Leisure) (Black Box) (2p Stake, £1/£2 Jackpot) | 1981? | Associated Leisure | bb_firec | bb_firec | fruitsamples |
| bb_firec | Fire Cracker (Bellfruit) (Black Box) (10p Stake, £2 Jackpot) | 1981 | BFM | | | fruitsamples |
| bb_gspin | Golden Spin (BWB) (Black Box) (MK1.5, 5p Stake, £50 Jackpot) | 1984 | BWB | | | fruitsamples |
| bb_nudcl | Nudge Climber (Bellfruit) (Black Box) (5p Stake, £1 Jackpot, all cash) | 1981 | BFM | | | fruitsamples |
| bb_nudgm | The Nudge Machine (ADMC) (Black Box) (5p Stake, £1/£2 Jackpot) | 1982 | ADM | | | fruitsamples |
| bb_oal | Oranges And Lemons (Bellfruit) (Black Box) (10p Stake, £2 Jackpot) | 1981 | BFM | | | fruitsamples |
| bb_reelg | Reel Gambler (Bellfruit) (Black Box) (10p Stake, £2 Jackpot) | 1981 | BFM | bb_upndn | bb_upndn | fruitsamples |
| bb_spinu | Spin Up (CTL) (Black Box) (10p Stake, £3 Jackpot) | 1981 | CTL | bb_dblit | bb_dblit | fruitsamples |
| bb_upndn | Upstairs 'N' Downstairs (Bellfruit) (Black Box) (5p Stake, £1 Jackpot) | 1980 | BFM | | | fruitsamples |
| bb_upndna | Upstairs 'N' Downstairs (Bellfruit) (Black Box) (5p Stake, £1 Jackpot, all cash) | 1981 | BFM | bb_upndn | bb_upndn | fruitsamples |
| bbakraid | Battle Bakraid - Unlimited Version (USA) (Tue Jun 8 1999) | 1999 | Eighting | | | |
| bbakraidc | Battle Bakraid - Unlimited Version (China) (Tue Jun 8 1999) | 1999 | Eighting | bbakraid | bbakraid | |
| bbakraidj | Battle Bakraid - Unlimited Version (Japan) (Tue Jun 8 1999) | 1999 | Eighting | bbakraid | bbakraid | |
| bbakraidja | Battle Bakraid (Japan) (Wed Apr 7 1999) | 1999 | Eighting | bbakraid | bbakraid | |
| bballoon | BnB Arcade | 2003 | Eolith | | | |
| bballrmt | Baseball (Ramtek) | 1974 | Ramtek | | | |
| bballs | Bouncing Balls | 1991 | Comad | | | |
| bballsa | Bouncing Balls (Adult) | 1991 | Comad | bballs | bballs | |
| bbb108 | Big Bang Bar (Beta 1.8 US) | 1996 | Capcom | bbb109 | bbb109 | |
| bbb109 | Big Bang Bar (Beta 1.9 US) | 1996 | Capcom | | | |
| bbbingo | Bin Bin Bingo (Japan, main unit) | 1996 | Namco | | | |
| bbbingot | Bin Bin Bingo (Japan, terminal) | 1996 | Namco | | | |
| bbbowlin | Big Ball Bowling (Bowler) | 1988 | United | | | genpin |
| bbbxing | Best Bout Boxing (ver 1.3) | 1994 | Jaleco | | | |
| bbc_1mhzbus_slot | BBC Micro 1MHz Bus port | | | | | |
| bbc_24bbc | Sprow 24bBC/RAM Disc Board | | | | | |
| bbc_2ndserial | Sprow 2nd Serial Port | | | | | |
| bbc_acorn1770 | Acorn 1770 FDC | | | | | |
| bbc_acorn8271 | Acorn 8721 FDC | | | | | |
| bbc_acornjoy | Acorn Analogue Joysticks | | | | | |
| bbc_ams3 | AMS 3" Microdrive Disc System | | | | | |
| bbc_amxmouse | AMX Mouse (BBC Micro) | | | | | |
| bbc_analogue_slot | BBC Micro Analogue port | | | | | |
| bbc_ariesb12 | Aries-B12 ROM Expansion | | | | | |
| bbc_ariesb20 | Aries-B20 RAM expansion (w/ Aries-B12) | | | | | |
| bbc_ariesb32 | Aries-B32 RAM expansion (w/ Aries-B12) | | | | | |
| bbc_atplsw | ATPL Sidewise ROM/RAM Expansion | | | | | |
| bbc_atplswp | ATPL Sidewise+ ROM Expansion | | | | | |
| bbc_autocue | Autocue RAM Disc | | | | | |
| bbc_autoprom | ATPL AutoPrommer | | | | | |
| bbc_awhd | Acorn Winchester Disc | | | | | |
| bbc_b488 | Aries-B488 | | | | | |
| bbc_barrybox | The Barry-Box | | | | | |
| bbc_beebide | Sprow BeebIDE 16-bit IDE Interface | | | | | |
| bbc_beebspch | Beeb Speech Synthesiser | | | | | |
| bbc_bitstik1 | Acorn Bitstik | | | | | |
| bbc_bitstik2 | Robo Bitstik 2 | | | | | |
| bbc_cartslot | BBC Master Cartridge Slot | | | | | |
| bbc_cc500 | CTS Colour Card 500 | | | | | |
| bbc_ccibase | Computer Concepts 64K ROM Carrier (Inter-Base) | | | | | |
| bbc_ccispell | Computer Concepts 128K ROM Carrier (SpellMaster) | | | | | |
| bbc_cciword | Computer Concepts 32K ROM Carrier (Inter-Word) | | | | | |
| bbc_chameleon | Micro User Chameleon (DIY) | | | | | |
| bbc_cisco | Cisco Terminal Data Board | | | | | |
| bbc_click | Slogger Click (Master 128) cartridge | | | | | |
| bbc_cpalette | Clwyd Technics Colour Palette | | | | | |
| bbc_cumana1 | Cumana QFS 8877A FDC | | | | | |
| bbc_cumana2 | Cumana QFS Issue 2 8877A FDC | | | | | |
| bbc_cumana68k | Cumana 68008 Upgrade Board | | | | | |
| bbc_cv1797 | Computer Village 1797 FDC | | | | | |
| bbc_datacentre | RetroClinic DataCentre | | | | | |
| bbc_datagem | Gemini DataGem ROM Carrier | | | | | |
| bbc_dfse00 | BBC Micro E00 DFS | | | | | |
| bbc_emrmidi | EMR BBC MIDI Interface | | | | | |
| bbc_exp_slot | BBC Master Compact Expansion port | | | | | |
| bbc_fdc_slot | BBC Micro FDC slot | | | | | |
| bbc_ide8 | RetroClinic BBC 8-bit IDE Interface | | | | | |
| bbc_ieee488 | Acorn IEEE-488 Interface | | | | | |
| bbc_integrab | Computech Integra-β | | | | | |
| bbc_internal_slot | BBC Micro internal boards | | | | | |
| bbc_joyport_slot | BBC Master Compact Joystick/Mouse port | | | | | |
| bbc_kenda | Kenda Professional DMFS | | | | | |
| bbc_lcd | Sprow LCD Display | | | | | |
| bbc_lvlecho | LVL Echo Keyboard | | | | | |
| bbc_m2000 | Hybrid Music 2000 Interface | | | | | |
| bbc_m3000 | Hybrid Music 3000 Expander | | | | | |
| bbc_m4000 | Hybrid Music 4000 Keyboard | | | | | |
| bbc_m500 | Acorn Music 500 | | | | | |
| bbc_m5000 | Hybrid Music 5000 Synthesiser | | | | | |
| bbc_m512mouse | Acorn Master 512 Mouse | | | | | |
| bbc_m87 | Peartree Music 87 Synthesiser | | | | | |
| bbc_mastersd | MasterSD BBC Master SD Cartridge | | | | | |
| bbc_mastersdr2 | MasterSD R2 BBC Master SD Cartridge | | | | | |
| bbc_mega256 | Solidisk Mega 256 cartridge | | | | | |
| bbc_memexb20 | Memex-B20 RAM expansion | | | | | |
| bbc_mertec | Mertec Compact Companion | | | | | |
| bbc_meup | Master Extra User Port | | | | | |
| bbc_modem_slot | BBC Master Internal Modem port | | | | | |
| bbc_morleyaa | Morley Electronics 'AA' Master ROM Expansion Board | | | | | |
| bbc_mr3000 | Peartree MR3000 ROM Board | | | | | |
| bbc_mr4200 | Peartree MR4200 RAM Board | | | | | |
| bbc_mr4300 | Peartree MR4300 ROM/RAM Board | | | | | |
| bbc_mr4800 | Peartree MR4800 RAM Board | | | | | |
| bbc_mr8000 | MR8000 Master RAM Cartridge | | | | | |
| bbc_msc | Master Smart Cartridge | | | | | |
| bbc_multiform | PEDL Multiform Z80 | | | | | |
| bbc_nvram | BBC Micro Sideways RAM (Battery Backup) | | | | | |
| bbc_opus1770 | Opus D-DOS(B) 1770 FDC | | | | | |
| bbc_opus2791 | Opus 2791 FDC | | | | | |
| bbc_opus2793 | Opus 2793 FDC | | | | | |
| bbc_opus3 | Opus Challenger 3-in-1 | | | | | |
| bbc_opus8272 | Opus 8272 FDC | | | | | |
| bbc_opusa | Opus Challenger ADFS | | | | | |
| bbc_overlay | Vine Micros Romboard '3' (Master OS Overlay) | | | | | |
| bbc_palabe | P.R.E.S. 32K ROM Carrier (ABE) | | | | | |
| bbc_palabep | P.R.E.S. 32K ROM Carrier (ABE+) | | | | | |
| bbc_palmo2 | Instant Mini Office 2 ROM Carrier | | | | | |
| bbc_palqst | Watford Electronics ROM Carrier (Quest Paint) | | | | | |
| bbc_palted | Watford Electronics ROM Carrier (TED) | | | | | |
| bbc_palwap | Watford Electronics ROM Carrier (Wapping Editor) | | | | | |
| bbc_pdram | Micro User Pull Down RAM (DIY) | | | | | |
| bbc_pms64k | PMS 64K Non-Volatile Ram Module | | | | | |
| bbc_pmsgenie | PMS Genie ROM Board | | | | | |
| bbc_pmsrtc | PMS Genie Real Time Clock | | | | | |
| bbc_quinkey | Microwriter Quinkey | | | | | |
| bbc_quinkey_intf | Microwriter Quinkey Interface | | | | | |
| bbc_quinkey_slot | Microwriter Quinkey slot | | | | | |
| bbc_ram | BBC Micro Sideways RAM | | | | | |
| bbc_ramamp | Ramamp Sideways RAM/ROM Board | | | | | |
| bbc_ramdisc | Morley Electronics RAM Disc | | | | | |
| bbc_raven20 | Raven-20 RAM expansion | | | | | |
| bbc_rom | BBC Micro Sideways ROM | | | | | |
| bbc_romex13 | GCC Romex13 ROM Expansion | | | | | |
| bbc_romslot16 | BBC Micro 16K ROM Slot | | | | | |
| bbc_romslot32 | BBC Micro 32K ROM Slot | | | | | |
| bbc_sasi | Torch SCSI Host Adaptor | | | | | |
| bbc_scsi | Acorn SCSI Host Adaptor | | | | | |
| bbc_scsiaiv | Acorn AIV SCSI Host Adaptor | | | | | |
| bbc_sdcard | BBC Micro SD Card | | | | | |
| bbc_sdcardt | BBC Micro Turbo SD Card | | | | | |
| bbc_sprite | Logotron Sprite Board | | | | | |
| bbc_stl1770_1 | Solidisk 1770 DDFS Issue 1 FDC | | | | | |
| bbc_stl1770_2 | Solidisk 1770 DDFS Issue 2 FDC | | | | | |
| bbc_stl2m128 | Solidisk Twomeg 128K RAM/ROM Expansion | | | | | |
| bbc_stl4m32 | Solidisk Fourmeg 32K RAM/ROM Expansion | | | | | |
| bbc_stldfdc_1 | Solidisk 8271/1770 DFDC Issue 1 FDC | | | | | |
| bbc_stlrtc | Solidisk Real Time Clock | | | | | |
| bbc_stlswr128 | Solidisk SWR128 - 128K Sideways RAM | | | | | |
| bbc_stlswr16 | Solidisk SWR16 - 16K Sideways RAM | | | | | |
| bbc_stlswr32 | Solidisk SWR32 - 32K Sideways RAM | | | | | |
| bbc_stlswr64 | Solidisk SWR64 - 64K Sideways RAM | | | | | |
| bbc_torchhd | Torch Hard Disc Pack | | | | | |
| bbc_tracker | Marconi RB2 Tracker Ball | | | | | |
| bbc_trilogy | Acornsoft Trilogy Emulator | | | | | |
| bbc_tube_16032 | Acorn 16032 2nd processor (prototype) | | | | | |
| bbc_tube_32016 | Acorn 32016 2nd processor | | | | | |
| bbc_tube_32016l | Acorn Large 32016 2nd processor | | | | | |
| bbc_tube_6502 | Acorn 6502 2nd Processor | | | | | |
| bbc_tube_6502e | Acorn Extended 6502 2nd Processor | | | | | |
| bbc_tube_6502p | Acorn 6502 2nd Processor (pre-production) | | | | | |
| bbc_tube_65c102 | Acorn 65C102 Co-Processor | | | | | |
| bbc_tube_80186 | Acorn 80186 Co-Processor | | | | | |
| bbc_tube_80286 | Acorn 80286 2nd Processor | | | | | |
| bbc_tube_a500 | Acorn A500 2nd Processor | | | | | |
| bbc_tube_a500d | Acorn A500 (Dual MEMC) 2nd Processor | | | | | |
| bbc_tube_arm | ARM Evaluation System | | | | | |
| bbc_tube_arm7 | Sprow ARM7TDMI Co-Processor | | | | | |
| bbc_tube_casper | Casper 68000 2nd Processor | | | | | |
| bbc_tube_cms6809 | CMS 6809 2nd Processor | | | | | |
| bbc_tube_matchbox | Matchbox Co-Processor | | | | | |
| bbc_tube_pcplus | Solidisk PC-Plus Co-Processor | | | | | |
| bbc_tube_rc6502 | ReCo6502 (65C02) | | | | | |
| bbc_tube_rc65816 | ReCo6502 (65C816) | | | | | |
| bbc_tube_slot | BBC Micro Tube port | | | | | |
| bbc_tube_x25 | Econet X25 Gateway Co-Processor | | | | | |
| bbc_tube_z80 | Acorn Z80 2nd Processor | | | | | |
| bbc_tube_z80w | Acorn Z80 2nd Processor (Winchester) | | | | | |
| bbc_tube_zep100 | Torch Z80 Communicator | | | | | |
| bbc_tube_zep100l | Torch Z80 Communicator (Model B) | | | | | |
| bbc_tube_zep100m | Torch Z80 Communicator (Master) | | | | | |
| bbc_tube_zep100w | Torch Z80 Communicator (Model B+) | | | | | |
| bbc_udm | United Disk Memories DDFS FDC | | | | | |
| bbc_userport_slot | BBC Micro User port | | | | | |