Under Siege (Maygay) (M1A/B) (set 1)
Under Siege (Maygay) (M1A/B) (set 4)
Under Siege (Maygay) (M1A/B) (set 3)
Under Siege (Maygay) (M1A/B) (set 2)
Undercover Cops (World)
Undercover Cops (Japan)
Undercover Cops (US)
Undercover Cops - Alpha Renewal Version
uni800
Unibox (Union) (MPU4, set 2)
Unibox (Union) (MPU4, set 1)
Unicorn Dreaming (0100791V, NSW/ACT)
Unicorn Dreaming (0101228V, New Zealand)
Unicorn Dreaming (0100813V, NSW/ACT)
unidisk
Union Jackpot (JPM) (SYSTEM5, set 2)
Union Jackpot (JPM) (SYSTEM5, set 3)
Union Jackpot (JPM) (SYSTEM5, set 1)
Unior
Unique (Union) (MPU4, set 2)
Unique (Union) (MPU4, set 1)
Unistar 200 Terminal
Unitron 1024
Unitron AP II (in English)
Unitron AP II (in Brazilian Portuguese)
Unitron AP II+ (Teclado Inteligente)
Universe (Barcrest) (Dutch) (MPU4) (DUN)
UniWar S (bootleg)
UniWar S
unknown '008' (Unk) (MPS)
