| Nintendo Super Famicom cart. |  Joe & Mac - Tatakae Genshijin Model SHVC-JT P | 1991 | Data East Corp. Japan |
| Amstrad CPC pack. |  Joe Blade 3 | 1991 | EDOS Electronic Distribution of Software |
| Sega Mega Drive cart. |  Joe Montana Football II | 1991 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Sega Genesis cart. | Joe Montana II - Sports Talk Football | 1991 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Mega-Tech cart. | Joe Montana II - Sports Talk Football Model 58 | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Game Gear cart. | Joe Montana's Football Model 2403 | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Nintendo Super NES cart. | John Madden Football | 1991 | Electronic Arts CA, USA 14633 |
| Sega Genesis cart. | John Madden Football '92 Model 7058 | 1991 | EASN |
| IBM PC/AT DOS pack. | John's Animated Computer Game Sw | 1991 | Flix Productions |
| Sinclair ZX Spectrum cass. | Johnnie Verso | 1991 | Wazertown Works Spain |
| Sharp X68000 Series 5.25in. disk | Joker | 1991 | Birdy Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Joker | 1991 | Birdy Soft. Japan |
| Video Slot Machine | Joker Card | 1991 | Fun World |
| Amstrad CPC pack. | Jonah Barrington's Squash | 1991 | EDOS Electronic Distribution of Software |
| Commodore C64 cass. | Jonny Quest in Doctor Zin's Underworld | 1991 | Hi-Tec Soft. |
| Sinclair ZX Spectrum cass. | Jonny Quest Model HT 163 | 1991 | Hi-Tec Soft. |
| Amstrad CPC cass. | Jonny Quest |Model HT 165 | 1991 | Hi-Tec Soft. |
| SNK Neo-Geo AES cart. | Joy Joy Kid Model NGH-021 | 1991 | SNK Corp. Shin Nihon Kikaku Japan |
| Video Slot Machine | Joyful Cards | 1991 | JALECO Co., Ltd. Japan |
| Amstrad CPC pack. | Judo Uchi Mata Model 27 | 1991 | EDOS Electronic Distribution of Software |
| Sinclair ZX Spectrum pack. | Judo Uchi Mata Model 27 | 1991 | EDOS Electronic Distribution of Software |
| Commodore C64 pack. | Judo Uchi Mata Model 27 | 1991 | EDOS Electronic Distribution of Software |
| MSX pack. | Judo Uchi Mata Model 27 | 1991 | EDOS Electronic Distribution of Software |
| Amstrad CPC 464 disk | Jugando Al Ajedrez Hb | 1991 | Unknown Spain |
| Nintendo Famicom cart. | JuJu Densetsu Model DTF-5J P | 1991 | Taito Corp. Japan |
| Sega Mega Drive cart. | JuJu Densetsu Model G-4064 | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Nintendo Super Famicom cart. | Jumbo Ozaki no Hole in One Model SHVC-JO | 1991 | HAL Laboratory, Inc. Japan |
| Pachinko | Jumbo Slider | 1991 | Okumura Japan |
| Amstrad CPC 464 disk | Jump | 1991 | Zigurat Soft. Spain |
| Amstrad CPC cass. | Jump Model AM-1258 | 1991 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Jump Model SE 1258 | 1991 | Zigurat Soft. Spain |
| MSX 3.5in disk | Jumper | 1991 | Nagi-P Soft |
| IBM PC/AT DOS pack. | Jumpman Lives! Sw | 1991 | Apogee Soft. |
| Sega Game Gear cart. | Junction Model T-22017 | 1991 | Micronet Co., Ltd. Japan |
| Commodore Amiga 500 pack. | Jungle Jim Model 896 | 1991 | EDOS Electronic Distribution of Software |
| Atari ST pack. | Jungle Jim Model 896 | 1991 | EDOS Electronic Distribution of Software |
| Amstrad CPC pack. | Jungle Warfare | 1991 | EDOS Electronic Distribution of Software |
| Nintendo Game Boy Cart. | Jungle Wars Model DMG-JWJ | 1991 | Pony Canyon, Inc. Japan |
| Nintendo Famicom cart. | Juvei Quest Model NAM-FJQ-7800 | 1991 | NAMCOT Japan |
| Sega Genesis cart. | Ka-Ge-Ki - Fists of Steel | 1991 | Sage's Creation, Inc. |
