| MAME Name | Description | Official | Alternate | VC WS | ||
 | ibara | Ibara (2005/03/22 MASTER VER.., '06. 3. 7 ver.) | - | - | 1.34 MB 06-Aug-2022 Download | |
 | ibarablk | Ibara Kuro Black Label (2006/02/06. MASTER VER.) | - | - | 1.96 MB 06-Aug-2022 Download | |
 | iceclimb | Vs. Ice Climber (set IC4-4 B-1) | 5.15 MB 06-Aug-2022 Download | - | 240 kB 19-May-2023 Download | |
 | idsoccer | Indoor Soccer (set 1) | - | - | 366 kB 19-May-2023 Download | |
| igmo | IGMO | - | - | 482 kB 06-Aug-2022 Download | |
 | igs_ncs | New Champion Skill (v100n) | - | 582 kB 06-Aug-2022 Download | - | |
 | igs_ncs2 | New Champion Skill (v100n 2000) | - | 582 kB 06-Aug-2022 Download | - | |
 | ikari | Ikari Warriors (US JAMMA) | 6.24 MB 06-Aug-2022 Download | - | 5.34 MB 06-Aug-2022 Download | |
 | ikari3 | Ikari III - The Rescue (World version 1, 8-Way Joystick) | 4.86 MB 06-Aug-2022 Download | - | 189 kB 06-Aug-2022 Download | |
| ikarijpb | Ikari (Joystick hack bootleg) | - | - | 372 kB 06-Aug-2022 Download | |
| ikki | Ikki (Japan) | - | - | 295 kB 06-Aug-2022 Download | |
| imago | Imago (cocktail set) | - | - | 582 kB 06-Aug-2022 Download | |
| imgfight | Image Fight (World) | - | - | 1.54 MB 19-May-2023 Download | |
| imsorry | I'm Sorry (315-5110, US) | - | - | 89.2 kB 06-Aug-2022 Download | |
 | incasun | Inca Sun (0100872V, NSW/ACT) | - | 619 kB 06-Aug-2022 Download | - | |
 | incasunnz | Inca Sun (0101108V, New Zealand) | - | 619 kB 06-Aug-2022 Download | - | |
 | indianbt | Indian Battle | 127 kB 06-Aug-2022 Download | - | 553 kB 06-Aug-2022 Download | |
 | indyheat | Danny Sullivan's Indy Heat (rev 1) | - | - | 424 kB 06-Aug-2022 Download | |
 | indytemp | Indiana Jones and the Temple of Doom (set 1) | 8.90 MB 06-Aug-2022 Download | - | 490 kB 19-May-2023 Download | |
 | inferno | Inferno (Williams) | 4.60 MB 06-Aug-2022 Download | - | 126 kB 06-Aug-2022 Download | |
| insector | Insector (prototype) | - | - | 79.9 kB 06-Aug-2022 Download | |
 | insectx | Insector X (World) | - | - | 514 kB 06-Aug-2022 Download | |
 | intcup94 | International Cup '94 (Ver 2.2O 1994/05/26) | 35.6 kB 06-Aug-2022 Download | - | 114 kB 06-Aug-2022 Download | |
 | inthunt | In The Hunt (World) | 19.6 MB 06-Aug-2022 Download | - | 878 kB 06-Aug-2022 Download | |
 | intrepid | Intrepid (set 1) | 223 kB 06-Aug-2022 Download | - | 629 kB 06-Aug-2022 Download | |
 | invad2ct | Space Invaders II (Midway, cocktail) | 1.87 MB 06-Aug-2022 Download | - | - | |
 | invaddlx | Space Invaders Deluxe | 6.53 MB 06-Aug-2022 Download | - | 2.08 MB 19-May-2023 Download | |
 | invaders | Space Invaders / Space Invaders M | 36.0 MB 06-Aug-2022 Download | - | 4.18 MB 19-May-2023 Download | |
 | invadpt2 | Space Invaders Part II (Taito, bigger ROMs) | 8.72 MB 06-Aug-2022 Download | - | 302 kB 06-Aug-2022 Download | |
 | invasnab | Invasion - The Abductors (version 5.0) | - | - | 698 kB 06-Aug-2022 Download | |
| invds | Invinco / Deep Scan | - | - | 565 kB 06-Aug-2022 Download | |
| invho2 | Invinco / Head On 2 (set 1) | - | - | 738 kB 06-Aug-2022 Download | |
| invinco | Invinco | - | - | 854 kB 06-Aug-2022 Download | |
 | invqix | Space Invaders / Qix Silver Anniversary Edition (Ver. 2.03) | - | - | 505 kB 06-Aug-2022 Download | |
 | invrvnge | Invader's Revenge (set 1) | 2.57 MB 06-Aug-2022 Download | - | 3.58 MB 06-Aug-2022 Download | |
| ipminvad | IPM Invader (set 1) | - | - | 57.0 kB 06-Aug-2022 Download | |
| iqblock | IQ-Block (V100U) | - | - | 63.0 kB 06-Aug-2022 Download | |
 | irobot | I, Robot | 407 kB 06-Aug-2022 Download | - | 247 kB 19-May-2023 Download | |
 | ironclad | Choutetsu Brikin'ger / Iron Clad (prototype) | - | - | 2.55 MB 06-Aug-2022 Download | |
| ironfort | Iron Fortress | - | - | 180 kB 06-Aug-2022 Download | |
 | ironhors | Iron Horse (version K) | - | - | 1.13 MB 06-Aug-2022 Download | |
 | irrmaze | The Irritating Maze / Ultra Denryu Iraira Bou | 2.24 MB 06-Aug-2022 Download | 19.7 MB 19-May-2023 Download | 4.95 MB 06-Aug-2022 Download | |
| itaten | Itazura Tenshi (Japan) | - | - | 264 kB 06-Aug-2022 Download | |
| ixion | Ixion (prototype) | - | - | 231 kB 06-Aug-2022 Download | |
