| Game Name | System |
|---|
| Unsolved Disc 1, 2, 3 (J) | Saturn |
| Untold Legends - Brotherhood of the Blade (Europe) | PSP |
| Untold Legends - Brotherhood of the Blade (Japan) | PSP |
| Untold Legends - Brotherhood of the Blade (USA) | PSP |
| Untold Legends - The Warrior's Code (Europe) | PSP |
| Untold Legends - The Warrior's Code (Japan) | PSP |
| Untold Legends - The Warrior's Code (Korea) | PSP |
| Untold Legends - The Warrior's Code (USA) | PSP |
| Untouchable (Ver. 2.10) | MAME |
| Untouchables (1989)(Ocean) | DOS |
| Untouchables (JPM) (IMPACT) (set 1) | MAME |
| Untouchables (JPM) (IMPACT) (set 2) | MAME |
| Untouchables, The (1989)(Ocean Software)[Part 1 of 2] | ZX Spectrum Z80 |
| Untouchables, The (1989)(Ocean Software)[Part 2 of 2] | ZX Spectrum Z80 |
| Untouchables, The (1989)(Ocean Software)[a][Part 1 of 2] | ZX Spectrum Z80 |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 1 of 3)[!] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 1 of 3)[a] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 2 of 3)[!] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 2 of 3)[a] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 3 of 3)[!] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)(Disk 3 of 3)[a] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)[cr MCA][t] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 1 of 2)[cr MCA][t][a] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 2 of 2)[cr MCA][t] | Atari ST |
| Untouchables, The (1989)(Ocean)(Disk 2 of 2)[cr MCA][t][a] | Atari ST |
| Untouchables, The (E) | C64 PP |
| Untouchables, The (E) | C64 Tapes |
| Untouchables, The (Japan) | NES |
| Untouchables, The (UK) (1989) (Disk 1 of 2) | CPC |
| Untouchables, The (UK) (1989) (Disk 1 of 2) [a1] | CPC |
| Untouchables, The (UK) (1989) (Disk 2 of 2) | CPC |
| Untouchables, The (UK) (1989) (Disk 2 of 2) [a1] | CPC |
| Untouchables, The (UK) (1989) (Disk 2 of 2) [a2] | CPC |
| Untouchables, The (UK) (1989) [f1][t1] | CPC |
| Untouchables, The (UK) (1989) [h1] | CPC |
| Untouchables, The (USA) | NES |
| Untouchables, The (USA) | SNES |
| Untouchables, The (USA) (Rev A) | NES |
| Untouchables, The (USA) (Rev B) | NES |
| Untouchables, The (demo) (19xx)(Ocean Software) | ZX Spectrum Z80 |
| Untouchables, The Compilation (UK) (1989) (Disk 1 of 2) | CPC |
| Untouchables, The Compilation (UK) (1989) (Disk 2 of 2) | CPC |
| Untouchables, The Manual Scans (UK) (1989) | CPC |
| Unwe Sangkwae Tongkwae Teullin Geulim Jeonjip (K)(Independent) | NDS |
| Uoozu (Japan) | GB |
| Up & Over (Barcrest) (MPU5) (set 1) | MAME |
| Up & Over (Barcrest) (MPU5) (set 2) | MAME |
| Up & Under (Project) (PROCONN) | MAME |
| Up 'n Down (1984) (Sega - Bally Midway - Beck-Tech) (009-01) | 2600 |
| Up 'n Down (E) | C64 Tapes |
| Up 'n' Down (19xx)(-)[cr] | Apple2 |
| Up (E) | NDS |
| Up (ES)(Independent) | NDS |
| Up (EU)(DeNovo) | NDS |
| Up (EU)(M3)(BAHAMUT) | NDS |
| Up (Europe) | PSP |
| Up (IT) | NDS |
| Up (Italy) | PSP |
| Up (JP)(Independent) | NDS |
| Up (Russia) | PSP |
| Up (Spain) | PSP |
| Up (US)(M2)(XenoPhobia) | NDS |
| Up (USA) | PSP |
| Up For Grabs (1988)(Alternative Software) | ZX Spectrum Z80 |
| Up For Grabs (Mazooma) (Scorpion 4) (set 1) | MAME |
| Up For Grabs (Mazooma) (Scorpion 4) (set 2) | MAME |
| Up For Grabs (UK) (1988) | CPC |
| Up For It (Bellfruit) (Scorpion 4) (set 1) | MAME |
| Up For It (Bellfruit) (Scorpion 4) (set 2) | MAME |
| Up For It (Bellfruit) (Scorpion 4) (set 3) | MAME |
| Up For It (Bellfruit) (Scorpion 4) (set 4) | MAME |
| Up For It (Bellfruit) (Scorpion 4) (set 5) | MAME |
| Up For It (Bellfruit) (Scorpion 4) (set 6) | MAME |
| Up Periscope (1988)(Actionsoft) | DOS |
| Up Periscope! - The Advanced Submarine Simulator (UE) (v1.1) | C64 PP |
| Up Pompay (Ace) (IMPACT) (set 1) | MAME |
| Up Pompay (Ace) (IMPACT) (set 2) | MAME |
| Up Pompay (Ace) (IMPACT) (set 3) | MAME |
| Up Pompay (Ace) (IMPACT) (set 4) | MAME |
| Up Pompay (Bellfruit) (Scorpion 5) (set 1) | MAME |
| Up Pompay (Bellfruit) (Scorpion 5) (set 2) | MAME |
| Up Pompay (Bellfruit) (Scorpion 5) (set 3) | MAME |
| Up Scope | MAME |
| Up Up and Away (1983)(Ringblack)[k-file] | Atari 800 |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.0, hack) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 B) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 D) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DA) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DB) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DH) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DK) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DR) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 DY) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 H) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 K) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 R) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1 Y) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.1) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.2 B) | MAME |
| Up Up and Away (Barcrest) (MPU4) (UPS 2.2 D) | MAME |
