| Name | Description | Year | Manufacturer | Rom | Clone | Sample |
| robo_a30 | Robocop (3.0) | 1989 | Data East | robo_a34 | robo_a34 | genpin |
| robo_a34 | Robocop (3.4) | 1989 | Data East | | | genpin |
| roboarmy | Robo Army | 1991 | SNK | neogeo | | |
| roboarmya | Robo Army (NGM-032 ~ NGH-032) | 1991 | SNK | roboarmy | roboarmy | |
| robocop | Robocop (World, revision 4) | 1988 | Data East Corporation | | | |
| robocop2 | Robocop 2 (Euro/Asia v0.10) | 1991 | Data East Corporation | | | |
| robocop2j | Robocop 2 (Japan v0.11) | 1991 | Data East Corporation | robocop2 | robocop2 | |
| robocop2u | Robocop 2 (US v0.10) | 1991 | Data East Corporation | robocop2 | robocop2 | |
| robocop2ua | Robocop 2 (US v0.05) | 1991 | Data East Corporation | robocop2 | robocop2 | |
| robocopb | Robocop (World bootleg) | 1988 | bootleg | robocop | robocop | |
| robocopj | Robocop (Japan) | 1988 | Data East Corporation | robocop | robocop | |
| robocopu | Robocop (US, revision 1) | 1988 | Data East USA | robocop | robocop | |
| robocopu0 | Robocop (US, revision 0) | 1988 | Data East USA | robocop | robocop | |
| robocopw | Robocop (World, revision 3) | 1988 | Data East Corporation | robocop | robocop | |
| robokid | Atomic Robo-kid (World, Type-2) | 1988 | UPL | | | |
| robokidj | Atomic Robo-kid (Japan, Type-2, set 1) | 1988 | UPL | robokid | robokid | |
| robokidj2 | Atomic Robo-kid (Japan, Type-2, set 2) | 1988 | UPL | robokid | robokid | |
| robokidj3 | Atomic Robo-kid (Japan) | 1988 | UPL | robokid | robokid | |
| robot | Robot (Zaccaria) | 1985 | Zaccaria | | | genpin |
| robotadv | Chess Robot Adversary | 1982 | Novag Industries / Intelligent Heuristic Programming | | | |
| robotbwl | Robot Bowl | 1977 | Exidy | | | robotbwl |
| robotech | Robotech | 2018 | Coleco | | | |
| robotf | Robot (Zaccaria, French speech) | 1985 | Zaccaria | robot | robot | genpin |
| robotg | Robot (Zaccaria, German speech) | 1985 | Zaccaria | robot | robot | genpin |
| roboti | Robot (Zaccaria, Italian speech) | 1985 | Zaccaria | robot | robot | genpin |
| robotron | Robotron: 2084 (Solid Blue label) | 1982 | Williams / Vid Kidz | | | |
| robotron_k7070 | Robotron K7070 KGS | | | | | |
| robotron_k7071 | Robotron K7071 ABS | | | | | |
| robotron12 | Robotron: 2084 (2012 'wave 201 start' hack) | 2012 | hack | robotron | robotron | |
| robotron87 | Robotron: 2084 (1987 'shot-in-the-corner' bugfix) | 1987 | hack | robotron | robotron | |
| robotrontd | Robotron: 2084 (2015 'tie-die V2' hack) | 2015 | hack | robotron | robotron | |
| robotronun | Robotron: 2084 (Unidesa license) | 1982 | Williams / Vid Kidz (Unidesa license) | robotron | robotron | |
| robotronyo | Robotron: 2084 (Yellow/Orange label) | 1982 | Williams / Vid Kidz | robotron | robotron | |
| robowars | Robo-War | 1988 | Gottlieb | | | genpin |
| robowarsf | Robo-War (French) | 1988 | Gottlieb | robowars | robowars | genpin |
| robowres | Robo Wres 2001 | 1986 | Sanritsu / Sega | | | |
| robowresb | Robo Wres 2001 (bootleg) | 1986 | bootleg | robowres | robowres | |
| roc10937 | Rockwell 10937 VFD controller | | | | | |
| roc10957 | Rockwell 10957 VFD controller | | | | | |
| rock | Rock | 1985 | Gottlieb | | | genpin |
| rock_enc | Rock Encore | 1986 | Gottlieb | rock | rock | genpin |
| rock_encg | Rock Encore (German) | 1986 | Gottlieb | rock | rock | genpin |
| rock2500 | Rock 2500 | 1985 | Playmatic | | | genpin |
| rockclim | Rock Climber | 1981 | Taito | | | |
| rockduck | Rock Duck (prototype?) | 1983 | Datel SAS | | | |
| rockg | Rock (German) | 1985 | Gottlieb | rock | rock | genpin |
| rockman2j | Rockman 2: The Power Fighters (Japan 960708) | 1996 | Capcom | megaman2 | megaman2 | |
| rockmanbc | Rockman EXE Battle Chip Stadium Ver.3.00 | 2006 | Capcom | | | |
| rockmanj | Rockman: The Power Battle (CPS1, Japan 950922) | 1995 | Capcom | megaman | megaman | |
| rockmanmdl | Rockman EXE The Medal Operation | 2005 | Capcom | | | |
| rockn | Rock'n Tread (Japan) | 1999 | Jaleco | | | |
| rockn2 | Rock'n Tread 2 (Japan) | 1999 | Jaleco | | | |
| rockn3 | Rock'n 3 (Japan) | 1999 | Jaleco | | | |
| rockn4 | Rock'n 4 (Japan, prototype) | 2000 | Jaleco / PCCWJ | | | |
| rockna | Rock'n Tread (Japan, alternate) | 1999 | Jaleco | rockn | rockn | |
| rocknms | Rock'n MegaSession (Japan) | 1999 | Jaleco | | | |
| rocknms10 | Rock'n MegaSession (Japan, ver 1.0) | 1999 | Jaleco | rocknms | rocknms | |
| rockpin | Rocket Pinball | 1979 | Tiger Electronics | | | |
| rockrage | Rock'n Rage (World) | 1986 | Konami | | | |
| rockragea | Rock'n Rage (prototype?) | 1986 | Konami | rockrage | rockrage | |
| rockragej | Koi no Hotrock (Japan) | 1986 | Konami | rockrage | rockrage | |
| rockroll | Rock 'n' Roll | 1999 | Unidesa/Cirsa | | | |
| rocksock | Rock 'Em Sock 'Em Robots (TV Game) | 2006 | Mattel | | | |
| rockstar | Plug 'N' Play Rockstar Guitar / Guitar Rock (PAL) | 2007 | Ultimate Products / TaiKee | | | |
| rocktcnvy | Rocket Convoy | 1981 | Radar | warofbug | warofbug | |
| rocktris | Rock Tris | 1994? | Yun Sung | | | |
| rocktrv2 | MTV Rock-N-Roll Trivia (Part 2) | 1986 | Triumph Software Inc. | | | |
| rocky | Rocky | 1982 | Gottlieb | | | genpin |
| rockyf | Rocky (French speech) | 1982 | Gottlieb | rocky | rocky | genpin |
| rocnrope | Roc'n Rope | 1983 | Konami | | | |
| rocnropek | Roc'n Rope (Kosuka) | 1983 | Konami (Kosuka license) | rocnrope | rocnrope | |
| rodent | Rodent Exterminator | 2005 | The Game Room | | | |
| rodeokng | Rodeo King (Japan, ver 1.00) | 2005 | Amuzy Corporation | | | |
| rodland | Rod-Land (World, set 1) | 1990 | Jaleco | | | |
| rodlanda | Rod-Land (World, set 2) | 1990 | Jaleco | rodland | rodland | |
| rodlandj | Rod-Land (Japan) | 1990 | Jaleco | rodland | rodland | |
| rodlandjb | Rod-Land (Japan bootleg with unencrypted program) | 1990 | bootleg | rodland | rodland | |
| rodlandjb2 | Rod-Land (Japan bootleg with unencrypted program and GFX) | 1990 | bootleg | rodland | rodland | |
| rohga | Rohga: Armor Force (Asia/Europe v5.0) | 1991 | Data East Corporation | | | |
| rohga1 | Rohga: Armor Force (Asia/Europe v3.0 set 1) | 1991 | Data East Corporation | rohga | rohga | |
| rohga2 | Rohga: Armor Force (Asia/Europe v3.0 set 2) | 1991 | Data East Corporation | rohga | rohga | |
| rohgah | Rohga: Armor Force (Hong Kong v3.0) | 1991 | Data East Corporation | rohga | rohga | |
| rohgau | Rohga: Armor Force (US v1.0) | 1991 | Data East Corporation | rohga | rohga | |
| roishtar | The Return of Ishtar | 1986 | Namco | | | |
| rolcrush | Rolling Crush (version 1.07.E - 1999/02/11, Trust license) | 1999 | SemiCom / Exit (Trust license) | | | |
| rolcrusha | Rolling Crush (version 1.03.E - 1999/01/29) | 1999 | SemiCom / Exit | rolcrush | rolcrush | |
| roldfrog | The Return of Lady Frog (set 1) | 1993 | Microhard | | | |
| roldfroga | The Return of Lady Frog (set 2) | 1993 | Microhard | roldfrog | roldfrog | |
| roldisco | Roller Disco | 1980 | Gottlieb | gts1 | | genpin |
| roljokr1 | Rolling Joker | 1999 | Paloma Elektronik? | | | |
| roljokr2 | Rolling Joker (v23.11.91) | 1997 | Paloma Elektronik? | | | |
| roljokr3 | Rolling Joker (v.99.7) | 1999 | Paloma Elektronik? | | | |
| rolla | unknown 'Rolla' slot machine | 199? | Random Games | | | |
| rollace | Roller Aces (set 1) | 1983 | Kaneko (Williams license) | fightrol | fightrol | |
| rollace2 | Roller Aces (set 2) | 1983 | Kaneko (Williams license) | fightrol | fightrol | |
| rollerg | Rollergames (US) | 1991 | Konami | | | |
| rollerga | Rollergames (Asia) | 1991 | Konami | rollerg | rollerg | |
| rollergj | Rollergames (Japan) | 1991 | Konami | rollerg | rollerg | |
| rollext | ROLLing eX.tre.me (US) | 1999 | Gaelco (Namco America license) | | | |
| rollfr | Roll Fruit (030821) | 2003 | Igrosoft | rollfr_4 | rollfr_4 | |
| rollfr_2 | Roll Fruit (040318) | 2003 | Igrosoft | rollfr_4 | rollfr_4 | |
| rollfr_3 | Roll Fruit (080327) | 2003 | Igrosoft | rollfr_4 | rollfr_4 | |
| rollfr_4 | Roll Fruit (080331) | 2003 | Igrosoft | | | |
| rollfr_5 | Roll Fruit (100924) | 2003 | Igrosoft | rollfr_4 | rollfr_4 | |
| rolling | Rolling | 1998 | bootleg | scmaster | scmaster | |
| rollingc | Rolling Crash / Moon Base | 1979 | Nichibutsu | | | invaders |
| rollr_d2 | Rollergames (AD-2) Prototype | 1990 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_e1 | Rollergames (PU-1) | 1991 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_ex | Rollergames (EXPERIMENTAL) | 1991 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_f2 | Rollergames (LF-2) French | 1991 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_f3 | Rollergames (LF-3) French | 1990 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_g3 | Rollergames (LG-3) Germany | 1990 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_l1 | Rollergames (LA-1) | 1990 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_l2 | Rollergames (LA-2) | 1990 | Williams | | | genpin |
| rollr_l3 | Rollergames (LU-3) Europe | 1990 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollr_p2 | Rollergames (PA-2 / PA-1 Sound) | 1991 | Williams | rollr_l2 | rollr_l2 | genpin |
| rollston | Rolling Stones (V21) | 1980 | Bally | | | genpin |
| rollstonv17 | Rolling Stones (V17) | 1980 | Bally | rollston | rollston | genpin |
| rolm_pdc | ROLM PDC | | | | | |
| rolm_smioc | ROLM SMIOC | | | | | |
| roma16 | Mephisto Roma 68000 | 1987 | Hegener + Glaser | roma32 | roma32 | |
| roma16g | Mephisto Roma 68000 (Glasgow hardware) | 1987 | Hegener + Glaser | roma32 | roma32 | |
| roma2 | Mephisto Roma II | 1989 | Hegener + Glaser | | | |
| roma32 | Mephisto Roma 68020 | 1987 | Hegener + Glaser | | | |
| romanl | Roman Legions (Konami Endeavour, Russia) | 200? | Konami | konendev | | |
| romp | IBM ROMP | | | | | |
| rompak | MTX ROMPAK | | | | | |
| rompers | Rompers (Japan, new version (Rev B)) | 1989 | Namco | | | |
| romperso | Rompers (Japan, old version) | 1989 | Namco | rompers | rompers | |
| ron2 | Futari Mahjong Ron II | 1981 | Sanritsu | | | |
| rongrong | Puzzle Game Rong Rong (Europe) | 1994 | Nakanihon (Activision license) | | | |
| rongrongg | Puzzle Game Rong Rong (Germany) | 1994 | Nakanihon (Activision license) | rongrong | rongrong | |
| rongrongj | Puzzle Game Rong Rong (Japan) | 1994 | Nakanihon (Activision license) | rongrong | rongrong | |
| ronjan | Ron Jan (set 1) | 1991 | Wing Co., Ltd | ronjans | ronjans | |
| ronjana | Ron Jan (set 2) | 1994 | Wing Co., Ltd | ronjans | ronjans | |
| ronjans | Ron Jan Super (set 1) | 1994 | Wing Co., Ltd | | | |
| ronjansa | Ron Jan Super (set 2) | 1994 | Wing Co., Ltd | ronjans | ronjans | |
| ronjansb | Ron Jan Super (set 3) | 1994 | Wing Co., Ltd | ronjans | ronjans | |
| ropeman | Ropeman (bootleg of Roc'n Rope) | 1983 | bootleg | rocnrope | rocnrope | |
| rosetta | IBM Rosetta | | | | | |
| rota_101 | Rotation VIII (v. 1.01) | 1978 | Midway | rotation | rotation | genpin |
| rota_115 | Rotation VIII (v. 1.15) | 1978 | Midway | rotation | rotation | genpin |
| rotaryf | Rotary Fighter | 1979 | Kasco | | | invaders |
| rotation | Rotation VIII (v. 1.17) | 1978 | Midway | | | genpin |
| rotd | Rage of the Dragons (NGM-2640?) | 2002 | Evoga / Playmore | neogeo | | |
| rotdh | Rage of the Dragons (NGH-2640?) | 2002 | Evoga / Playmore | rotd | rotd | |
| rotr | Rise of the Robots (prototype) | 1994 | BFM/Mirage | | | |
| rotra | Rise of the Robots (prototype, older) | 1994 | BFM/Mirage | rotr | rotr | |
| roughrac | Rough Racer (Japan, Floppy Based, FD1094 317-0058-06b) | 1990 | Sega | | | |
| rougien | Rougien | 1982 | Sanritsu | | | |
| roul | Super Lucky Roulette | 1990 | bootleg | | | |
| roundup | Round-Up | 1981 | Taito Corporation (Amenip/Centuri license) | | | |
| roundup5 | Round Up 5 - Super Delta Force | 1989 | Tatsumi | | | |
| route16 | Route 16 (Sun Electronics, set 1) | 1981 | Sun Electronics | | | |
| route16a | Route 16 (Centuri license, set 1) | 1981 | Sun Electronics / Tehkan (Centuri license) | route16 | route16 | |
| route16b | Route 16 (Centuri license, set 2) | 1981 | Sun Electronics / Tehkan (Centuri license) | route16 | route16 | |
| route16bl | Route 16 (bootleg) | 1981 | bootleg (Leisure and Allied) | route16 | route16 | |
| route16c | Route 16 (Centuri license, set 3, bootleg?) | 1981 | Sun Electronics / Tehkan (Centuri license) | route16 | route16 | |
| route16d | Route 16 (Sun Electronics, set 2) | 1981 | Sun Electronics | route16 | route16 | |
| routex | Route X (bootleg, set 1) | 1981 | bootleg | route16 | route16 | |
| routexa | Route X (bootleg, set 2) | 1981 | bootleg | route16 | route16 | |
| rowtrn2k | Rowtron 2000 | 198? | Rowtron | intmpt03 | intmpt03 | |
| royal | Royal (Pool 10 hack) | 2001 | <unknown> | pool10 | pool10 | |
| royal5p | Royal 5+ (V101US) | 2005 | IGS | | | |
| royalcdfr | Royal Card (French) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrd | Royal Card (German, set 1) | 1991 | TAB Austria | | | |
| royalcrd_msx | Royal Card (stealth with MSX multigame) | 1991 | bootleg | royalcrd | royalcrd | |
| royalcrd_nes | Royal Card (stealth with NES multigame, set 1) | 1991 | bootleg | royalcrd | royalcrd | |
| royalcrd_nesa | Royal Card (stealth with NES multigame, set 2) | 1991 | bootleg | royalcrd | royalcrd | |
| royalcrda | Royal Card (German, set 2) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrdb | Royal Card (German/Polish, set 3) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrdc | Royal Card (German, set 4) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrdd | Royal Card (German, set 5) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrde | Royal Card (German, set 6) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrdf | Royal Card (Evona, Polish, encrypted) | 1991 | Evona Electronic | royalcrd | royalcrd | |
| royalcrdg | Royal Card (German, set 7, CMC C1030 HW) | 1990 | bootleg | royalcrd | royalcrd | |
| royalcrdh | Royal Card (German, set 8) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royalcrdp | Royal Card v2.0 Professional | 1993 | Digital Dreams | royalcrd | royalcrd | |
| royalcrdt | Royal Card (TAB original) | 1991 | TAB Austria | royalcrd | royalcrd | |
| royale | Royale (set 1) | 198? | <unknown> | | | |
| royalea | Royale (set 2) | 198? | <unknown> | royale | royale | |
| royaljp | Royal Card / Royal Jackpot (with a third draw)(encrypted) | 199? | TAB / Video Klein | royalcrd | royalcrd | |
| royalmah | Royal Mahjong (Falcon bootleg, v1.01) | 1982 | bootleg | royalmj | royalmj | |
| royalmj | Royal Mahjong (Japan, v1.13) | 1981 | Nichibutsu | | | |
| royalngt | Royal Night (Japan 840220 RN 2-00) | 1984 | Royal Denshi | ngtbunny | ngtbunny | |
| royalpk2 | Royal Poker 2 (Network version 3.12) | 1999 | F2 System | | | |
| royalqn | Royal Queen (Japan 841010 RQ 0-07) | 1984 | Royal Denshi | | | |
| royclark | Roy Clark - The Entertainer | 1977 | Fascination Int. | allied | | genpin |
| roylcrdn | Royal Card (Nichibutsu HW) | 1985 | Amusement | | | |
| roylcrdna | Royal Card Part-Two (Nichibutsu HW, Ver. 1.02) | 1982 | Miki Corp. | roylcrdn | roylcrdn | |
| roypok96 | Royal Poker '96 (set 1, v97-3.5) | 1996 | Amcoe | | | |
| roypok96a | Royal Poker '96 (set 2, v98-3.6) | 1996 | Amcoe | roypok96 | roypok96 | |
| roypok96b | Royal Poker '96 (set 3, v98-3.6?) | 1996 | Amcoe | roypok96 | roypok96 | |
| roypok96c | Royal Poker '96 (set 4, C3 board) | 1996 | Amcoe | roypok96 | roypok96 | |
| rp200 | GEM RealPiano RP200 | 1999 | Generalmusic | | | |
| rp2a03 | Ricoh RP2A03 | | | | | |
| rp2a03_core | Ricoh RP2A03 core | | | | | |
| rp2a03_core_swap_op_d5_d6 | RP2A03 core with optional code bitswap | | | | | |
| rp2a03_vtscr | RP2A03 with VTxx scrambling | | | | | |
| rp2a03g | Ricoh RP2A03G | | | | | |
| rp2c33_snd | Ricoh RP2C33 (sound) | | | | | |
| rp5c01 | Ricoh RP5C01 RTC | | | | | |
| rp5c15 | Ricoh RP5C15 RTC | | | | | |
| rp5h01 | RP5H01 6/7-bit Counter | | | | | |
| rpanic | Rolling Panic (v2.33) | 1992 | Excellent System / Jaleco | d9final | d9final | |
| rpatrol | River Patrol (Japan) | 1981 | Orca | | | |
| rpatrolb | River Patrol (bootleg) | 1981 | bootleg | rpatrol | rpatrol | |
| rpatroln | River Patrol (Japan, unprotected) | 1981 | Orca | rpatrol | rpatrol | |
| rpc600 | Risc PC 600 | 1994 | Acorn | | | |
| rpc700 | Risc PC 700 | 1994 | Acorn | rpc600 | rpc600 | |
| rpc86 | RPC 86 | 19?? | Intel | | | |
| rpunch | Rabbit Punch (US) | 1987 | V-System Co. (Bally/Midway/Sente license) | rabiolep | rabiolep | |
| rranger | Rough Ranger (v2.0) | 1988 | SunA (Sharp Image license) | sranger | sranger | |
| rrangerb | Rough Ranger (v2.0, bootleg) | 1988 | bootleg | sranger | sranger | |
| rriders | Ring Riders (Software version v2.2) | 2004 | Gaelco | | | |
| rrreveng | Road Riot's Revenge (prototype, Sep 06, 1994) | 1993 | Atari Games | | | |
| rrrevenga | Road Riot's Revenge (prototype, Jan 27, 1994, set 1) | 1993 | Atari Games | rrreveng | rrreveng | |
| rrrevengb | Road Riot's Revenge (prototype, Jan 27, 1994, set 2) | 1993 | Atari Games | rrreveng | rrreveng | |
| rrvac | Ridge Racer V Arcade Battle (RRV3 Ver. A) | 2000 | Namco | sys246 | | |
| rrvac1 | Ridge Racer V Arcade Battle (RRV1 Ver. A) | 2000 | Namco | rrvac | rrvac | |
| rrvac2 | Ridge Racer V Arcade Battle (RRV2 Ver. A) | 2000 | Namco | rrvac | rrvac | |
| rs_l6 | Red and Ted's Road Show (L-6) | 1994 | Williams | | | |
| rs_la4 | Red and Ted's Road Show (La-4) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_la5 | Red and Ted's Road Show (La-5) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_lx2 | Red and Ted's Road Show (Lx-2) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_lx3 | Red and Ted's Road Show (Lx-3) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_lx4 | Red and Ted's Road Show (Lx-4) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_lx5 | Red and Ted's Road Show (Lx-5) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_pa2 | Red and Ted's Road Show (PA-2 prototype) | 1994 | Williams | rs_l6 | rs_l6 | |
| rs_serial_printer | Radio Shack Serial Printer | | | | | |
| rs128 | RS 128 | 1984 | Memotech Ltd | mtx512 | mtx512 | |
| rs2030 | RS2030 | 1989 | MIPS | | | |
| rs232 | RS-232 Port | | | | | |
| rs232_densei_ups | RS232 Densei UPS | | | | | |
| rs232_loopback | RS-232 Loopback | | | | | |
| rs232_mouse_hle_logitech | Logitech 3-Button Serial Mouse (HLE) | | | | | |
| rs232_mouse_hle_msft | Microsoft 2-Button Serial Mouse (HLE) | | | | | |
| rs232_mouse_hle_msystems | Mouse Systems Non-rotatable Mouse (HLE) | | | | | |
| rs232_mouse_hle_rotatable | Mouse Systems Rotatable Mouse (HLE) | | | | | |
| rs232_mouse_hle_sgi | SGI IRIS Indigo Mouse (HLE) | | | | | |
| rs232_mouse_hle_wheel | Microsoft Serial Mouse with Wheel (HLE) | | | | | |
| rs232_patch_box | RS-232 Patch Box | | | | | |
| rs232_sync_io | RS-232 Synchronous I/O | | | | | |
| rs3230 | Magnum 3000 | 1990 | MIPS | | | |
| rs6k7009 | RS/6000 Type 7009 Model C10 Server | 1994 | International Business Machines | | | |
| rs70_648 | RS-70 648-in-1 | 2019 | CoolBoy | | | |
| rsgun | Radiant Silvergun (JUET 980523 V1.000) | 1998 | Treasure | stvbios | | |
| rshark | R-Shark (set 1) | 1995 | Dooyong | | | |
| rshark_rom_tilemap | R-Shark ROM Tilemap | | | | | |
| rsharka | R-Shark (set 2) | 1995 | Dooyong | rshark | rshark | |