 | Rad Racer II (PlayChoice-10) | 1990 | Square (Nintendo of America license) | pc_radr2 | Driving / Race (chase view) | 4.86 |
| | Radical! (G-1) (clone of: radcl_l1) | 1990 | Bally | radcl_g1 | | 0.00 |
| | Radical! (L-1) | 1990 | Bally | radcl_l1 | | 0.00 |
| | Radical! (P-3) (clone of: radcl_l1) | 1990 | Bally | radcl_p3 | | 0.00 |
 | Raiden (Korea) (clone of: raiden) | 1990 | Seibu Kaihatsu (IBL Corporation license) | raidenk | Shooter / Flying Vertical | 0.00 |
| Raiden (set 1) | 1990 | Seibu Kaihatsu | raiden | Shooter / Flying Vertical | 7.20 |
| Raiden (set 2) (clone of: raiden) | 1990 | Seibu Kaihatsu | raidena | Shooter / Flying Vertical | 0.00 |
| Raiden (set 3, Alternate hardware) (clone of: raiden) | 1990 | Seibu Kaihatsu | raidenb | | 0.00 |
| Raiden (Taiwan) (clone of: raiden) | 1990 | Seibu Kaihatsu (Liang HWA Electronics license) | raident | Shooter / Flying Vertical | 0.00 |
| Raiden (US, set 1) (clone of: raiden) | 1990 | Seibu Kaihatsu (Fabtek license) | raidenu | | 0.00 |
| Raiden (US, set 2, SEI8904 + SEI9008 PCBs) (clone of: raiden) | 1990 | Seibu Kaihatsu (Fabtek license) | raidenua | | 0.00 |
 | Rampart (Japan, Joystick) (clone of: rampart) | 1990 | Atari Games | rampartj | Shooter / Command | 0.00 |
| Rampart (Joystick) (clone of: rampart) | 1990 | Atari Games | rampart2p | | 0.00 |
| Rampart (Trackball) | 1990 | Atari Games | rampart | Shooter / Command | 6.40 |
| | Rastan Saga II (Tourvision PCE bootleg) | 1990 | bootleg (Tourvision) / Taito | tvrs2 | | 0.00 |
 | Riding Hero (NGM-006)(NGH-006) | 1990 | SNK | ridhero | Driving / Race (chase view) Bike | 6.38 |
| Riding Hero (set 2) (clone of: ridhero) | 1990 | SNK | ridheroh | Driving / Race (chase view) Bike | 0.00 |
| | Riverboat Gambler (L-3) | 1990 | Williams | rvrbt_l3 | | 0.00 |
 | Rod-Land (Japan bootleg) (clone of: rodland) | 1990 | bootleg | rodlandjb | | 0.00 |
| Rod-Land (Japan) (clone of: rodland) | 1990 | Jaleco | rodlandj | Platform / Run Jump | 0.00 |
