MAME ROMs
Featured Games
 Ultra Balloon |  Ultimate Mortal Kombat 3 (rev 1.0) |  Undercover Cops (World) |  Under Fire (World) |
Letter: U
- U-boat 65
- U.N. Defense Force: Earth Joker (Japan)
- U.N. Defense Force: Earth Joker (Japan, prototype?)
- U.N. Squadron (USA)
- U.S. Championship V'ball (bootleg of Japan set)
- U.S. Championship V'ball (bootleg of US set)
- U.S. Championship V'ball (Japan)
- U.S. Championship V'ball (US)
- U.S. Classic
- U.S. Navy (Japan 901012)
- U.S.A. Football
- Uchuu Daisakusen: Chocovader Contactee (Japan, CVC1 Ver.A)
- Uchuu Tokkyuu Medalian
- UFO Catcher 21
- UFO Catcher 800
- UFO Catcher Mini
- Ufo Robo Dangar (12/1/1986)
- Ufo Robo Dangar (9/26/1986)
- Ufo Robo Dangar (bootleg)
- Ufo Senshi Yohko Chan (bootleg, not encrypted)
- Ufo Senshi Yohko Chan (MC-8123, 317-0064)
- UFO-X
- Ultimate (Dutch) (Bellfruit) (Scorpion 1)
- Ultimate Challenge (Maygay) (M1A/B) (set 1)
- Ultimate Challenge (Maygay) (M1A/B) (set 2)
- Ultimate Challenge (Maygay) (M1A/B) (set 3)
- Ultimate Challenge (Maygay) (M1A/B) (set 4)
- Ultimate Ecology (Japan 931203)
- Ultimate Mortal Kombat 3 (rev 1.0)
- Ultimate Mortal Kombat 3 (rev 1.1)
- Ultimate Mortal Kombat 3 (rev 1.2)
- Ultimate Nudge (Summit Coin)
- Ultimate Tennis
- Ultimate Tennis (v 1.4, Japan)
- Ultimo (Barcrest) (MPU5) (set 1)
- Ultimo (Barcrest) (MPU5) (set 2)
- Ultimo (Barcrest) (MPU5) (set 3)
- Ultra Balloon
- Ultra Invaders
- Ultra Maru-hi Mahjong (Japan)
- Ultra Tank
- Ultra Toukon Densetsu (Japan)
- Ultra X Weapons / Ultra Keibitai
- Ultra X Weapons / Ultra Keibitai (GAMEST review build)
- Ultraman (Japan)
- Ultraman Club - Tatakae! Ultraman Kyoudai!!
- Umi de Poker / Marine Paradise (Japan)
- Uncle Fester's Quest: The Addams Family (PlayChoice-10)
- Uncle Poo
- Under Defeat (GDL-0035)
- Under Fire (Japan)
- Under Fire (US)
- Under Fire (World)
- Under Siege (Maygay) (M1A/B) (set 1)
- Under Siege (Maygay) (M1A/B) (set 2)
- Under Siege (Maygay) (M1A/B) (set 3)
- Under Siege (Maygay) (M1A/B) (set 4)
- Undercover Cops (Japan)
- Undercover Cops (US)
- Undercover Cops (World)
- Undercover Cops - Alpha Renewal Version
- Unibox (Union) (MPU4, set 1)
- Unibox (Union) (MPU4, set 2)
- Union Jackpot (JPM) (SYSTEM5, set 1)
- Union Jackpot (JPM) (SYSTEM5, set 2)
- Union Jackpot (JPM) (SYSTEM5, set 3)
- Unique (Union) (MPU4, set 1)
- Unique (Union) (MPU4, set 2)
- Universe (Barcrest) (Dutch) (MPU4) (DUN)
- UniWar S
- unknown '008' (Unk) (MPS)
- unknown 'chsnsn05' (Unk) (MPS)
- unknown 'Electrocoin' Fruit Machines (Electrocoin) (set 1)
- unknown 'Electrocoin' Fruit Machines (Electrocoin) (set 2)
- unknown 'Electrocoin' Fruit Machines (Electrocoin) (set 3)
- unknown 'Electrocoin' Fruit Machines (Electrocoin) (set 4)
- unknown 'IGS 6POKER2' game (V312CN)
- unknown 'lhs' (Unk) (MPS)
- unknown 'ncsp0pp' (Bwb) (MPS)
- unknown 'nn_2' (Unk) (MPS)
- unknown 'nprpopp' (Bwb) (MPS)
- unknown 'nsc15' (Pcp) (MPS)
- unknown 'nsw12' (Pcp) (MPS)
- unknown 'rm941' (Unk) (MPS)
- unknown 'T' (MAB PCB?) (Concept Games Ltd) (?)
- unknown 186 based gambling game (V398)
- unknown 186 based gambling game (V399)
- unknown Astra 'ACP' (Astra, V403)
- unknown encrypted poker game
- unknown fighting game 'BB' (prototype)
- unknown French poker game
- unknown H8 Italian Gambling game
- unknown Japanese horse gambling game
- unknown MPU4 'CH3 0.1' (Barcrest) (MPU4)
- unknown MPU4 'CLD 0.2C' (MPU4?)
- unknown MPU4 'CTP 0.4' (MPU4?)
- unknown MPU4 'HOT 3.0' (MPU4?)
- unknown MPU4 'Joker' (MPU4?) (set 1)
- unknown MPU4 'Joker' (MPU4?) (set 2)
- unknown MPU4 'Joker' (MPU4?) (set 3)
- unknown MPU4 'Joker' (MPU4?) (set 4)
- unknown MPU4 'STC 0.1' (Barcrest) (MPU4)
- unknown MPU4 'TTO 1.1' (MPU4?)
- unknown MPU4 'W Nudge' (MPU4?)
- unknown MPU4 'ZTP 0.7' (MPU4?)
- unknown Pac-Man gambling game
- unknown pinball game
- unknown Ramtek Game (Maybe Hockey?) [TTL]
- unknown Scorpion 1 'Super ?' (Bellfruit) (Scorpion 1)
- unknown Sidam Poker
- unknown Sisteme France Poker
- unknown SRU Game (JPM?)
- unknown TMS9980 Poker Game
- unknown Toptronic pinball game
- Untouchable (Japan)
- Untouchables (JPM) (IMPACT) (set 1)
- Untouchables (JPM) (IMPACT) (set 2)
- Up & Over (Barcrest) (MPU5) (set 1)
- Up & Over (Barcrest) (MPU5) (set 2)
- Up & Under (Project) (PROCONN)
- Up For Grabs (Mazooma) (Scorpion 4) (set 1)
- Up For Grabs (Mazooma) (Scorpion 4) (set 2)
- Up For It (Bellfruit) (Scorpion 4) (set 1)
- Up For It (Bellfruit) (Scorpion 4) (set 2)
- Up For It (Bellfruit) (Scorpion 4) (set 3)
- Up For It (Bellfruit) (Scorpion 4) (set 4)
- Up For It (Bellfruit) (Scorpion 4) (set 5)
- Up For It (Bellfruit) (Scorpion 4) (set 6)
- Up Pompay (Ace) (IMPACT) (set 1)
- Up Pompay (Ace) (IMPACT) (set 2)
- Up Pompay (Ace) (IMPACT) (set 3)
- Up Pompay (Ace) (IMPACT) (set 4)
- Up Pompay (Bellfruit) (Scorpion 5) (set 1)
- Up Pompay (Bellfruit) (Scorpion 5) (set 2)
- Up Pompay (Bellfruit) (Scorpion 5) (set 3)
- Up Scope
- Up Up and Away (Barcrest) (MPU4) (set 1)
- Up Up and Away (Barcrest) (MPU4) (set 10)
- Up Up and Away (Barcrest) (MPU4) (set 11)
- Up Up and Away (Barcrest) (MPU4) (set 12)
- Up Up and Away (Barcrest) (MPU4) (set 13)
- Up Up and Away (Barcrest) (MPU4) (set 14)
- Up Up and Away (Barcrest) (MPU4) (set 15)
- Up Up and Away (Barcrest) (MPU4) (set 16)
- Up Up and Away (Barcrest) (MPU4) (set 17)
- Up Up and Away (Barcrest) (MPU4) (set 18)
- Up Up and Away (Barcrest) (MPU4) (set 19)
- Up Up and Away (Barcrest) (MPU4) (set 2)
- Up Up and Away (Barcrest) (MPU4) (set 20)
- Up Up and Away (Barcrest) (MPU4) (set 21)
- Up Up and Away (Barcrest) (MPU4) (set 22)
- Up Up and Away (Barcrest) (MPU4) (set 23)
- Up Up and Away (Barcrest) (MPU4) (set 24)
- Up Up and Away (Barcrest) (MPU4) (set 25)
- Up Up and Away (Barcrest) (MPU4) (set 26)
- Up Up and Away (Barcrest) (MPU4) (set 27)
- Up Up and Away (Barcrest) (MPU4) (set 28)
- Up Up and Away (Barcrest) (MPU4) (set 29)
- Up Up and Away (Barcrest) (MPU4) (set 3)
- Up Up and Away (Barcrest) (MPU4) (set 30)
- Up Up and Away (Barcrest) (MPU4) (set 31)
- Up Up and Away (Barcrest) (MPU4) (set 32)
- Up Up and Away (Barcrest) (MPU4) (set 33)
- Up Up and Away (Barcrest) (MPU4) (set 34)
- Up Up and Away (Barcrest) (MPU4) (set 35)
- Up Up and Away (Barcrest) (MPU4) (set 36)
- Up Up and Away (Barcrest) (MPU4) (set 37)
- Up Up and Away (Barcrest) (MPU4) (set 38)
- Up Up and Away (Barcrest) (MPU4) (set 39)
- Up Up and Away (Barcrest) (MPU4) (set 4)
- Up Up and Away (Barcrest) (MPU4) (set 40)
- Up Up and Away (Barcrest) (MPU4) (set 41)
- Up Up and Away (Barcrest) (MPU4) (set 42)
- Up Up and Away (Barcrest) (MPU4) (set 43)
- Up Up and Away (Barcrest) (MPU4) (set 44)
- Up Up and Away (Barcrest) (MPU4) (set 45)
- Up Up and Away (Barcrest) (MPU4) (set 46)
- Up Up and Away (Barcrest) (MPU4) (set 47)
- Up Up and Away (Barcrest) (MPU4) (set 48)
- Up Up and Away (Barcrest) (MPU4) (set 49)
- Up Up and Away (Barcrest) (MPU4) (set 5)
- Up Up and Away (Barcrest) (MPU4) (set 50)
- Up Up and Away (Barcrest) (MPU4) (set 51)
- Up Up and Away (Barcrest) (MPU4) (set 52)
- Up Up and Away (Barcrest) (MPU4) (set 53)
- Up Up and Away (Barcrest) (MPU4) (set 54)
- Up Up and Away (Barcrest) (MPU4) (set 6)
- Up Up and Away (Barcrest) (MPU4) (set 7)
- Up Up and Away (Barcrest) (MPU4) (set 8)
- Up Up and Away (Barcrest) (MPU4) (set 9)
- Up Yer Riggin Club (Global) (v2.8 Protocol) (Stealth)
- Up Yer Riggin Club (Global) (v2.8) (Stealth)
- Up Your Alley
- Up'n Down (315-5030)
- Up'n Down (not encrypted)
- US AAF Mustang (25th May. 1990 / Seoul Trading)
- US AAF Mustang (25th May. 1990)
- US AAF Mustang (bootleg)
- US AAF Mustang (TAB Austria bootleg)
- Us vs. Them
- USA Pro Basketball (Tourvision PCE bootleg)
- Usagi - Yamashiro Mahjong Hen (GDL-0022)
- Utter Nutter (Global) (EPOCH) (set 1)
- Utter Nutter (Global) (EPOCH) (set 2)
- Utter Nutter (Global) (EPOCH) (set 3)
- Utter Nutter (Global) (EPOCH) (set 4)
- Utter Nutter Club (Global) (EPOCH) (set 1)
- Utter Nutter Club (Global) (EPOCH) (set 2)