| Amstrad CPC cass. |  Justin Hb | 2005 | CNGSOFT |
| Amstrad CPC 464 disk | Justin Hb | 2005 | CNGSOFT |
| Medal video game | JVIC III | 2005 | Unknown Korea |
| Pachinko | K-1 Premium Dynamite!! Model BNA | 2005 | Sammy Corp. Japan |
| Pachinko | K-1 Premium Dynamite!! Model MNA | 2005 | Sammy Corp. Japan |
| Pachinko | K-1 Premium Dynamite!! Model RNA | 2005 | Sammy Corp. Japan |
| Slot Machine | K-9 Cash | 2005 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Kablooey! | 2005 | IGT International Game Technologies Reno, NV, USA |
| Pachislot | Kagetsu Densetsu | 2005 | Sankyo Tokyo, Japan |
| Pachinko | Kahara Tomomi to Minashigo Hacchi | 2005 | Bisty Japan |
| Nintendo DS cart. | Kahashima Ryuuta Kyouju no Nou wo Kitaeru Otona no DS Training for Adults | 2005 | Nintendo Co., Ltd. Japan |
| Pachinko | Kaibutsu-kun | 2005 | Daiichi Denshi |
| Medal video game | Kang Ta | 2005 | Unknown Korea |
| Sega Pico game |  Kanshuu Unou Image Training - Hiragana - Katakana | 2005 | Pony Canyon, Inc. Japan |
| Sony PSP UMD | Kao Challengers Model ULES-00146 | 2005 | Atari Europe S.A.S.U. |
| Nintendo GBA cart. | Kappa no Kai-kata - Kaatan Daibouken! Model AGB-BK8J-JPN(RK372-J1) | 2005 | Konami Corp. Japan |
| Nintendo GameCube disc | Karaoke Revolution Party Model DOL-GK9E-USA | 2005 | Konami Digital Ent. Co., Ltd. |
| Sony PlayStation 2 disc | Karate Dou Oretachi Geasen Zoku Model SLPM-62628 | 2005 | Hamster Japan |
| Sinclair ZX Spectrum cass. | Kartyas Jatek Hb | 2005 | NyitraiSOFT |
| Medal video game | Katori Attack | 2005 | Amuzy Japan |
| PC/MS-Windows CD | Kazoku Keikaku Tsuioku | 2005 | DO Corp. Japan |
| Sega Beena cart. | Kazoku Minna no Nouryoku Trainer | 2005 | SEGA Toys |
| Pachinko | Keiji Mutoh Model FZ60 | 2005 | Maruhon Japan |
| Pachinko | Keiji Mutoh Model MT | 2005 | Maruhon Japan |
| Pachinko | Keiji Mutoh Model ST5 | 2005 | Maruhon Japan |
| Nintendo DS cart. | Kenshuui Tendou Dokuta 2 - Inochi no Tenbin | 2005 | Spike Japan |
| Redemption mechanical game | KeroKero Tenkini Na-Re | 2005 | FDEK Fuji Denshi Kogyo Co., Ltd Japan |
| Nintendo GBA cart. | Kessaku Sen Ganbare Goemon 1, 2 - Yuki Hime to Magginesu Model AGB-BG2J-JPN(RK370-J1) | 2005 | Konami Corp. Japan |
| Pachinko | Kick no Oni | 2005 | Takao Co., Ltd. Japan |
| Nintendo GBA cart. | Kid Paddle Model AGB-BYLP-EUR | 2005 | Atari Interactive, Inc. |
| Nintendo GBA cart. | Kid's Cards Model AGB-BCXE-USA | 2005 | Majesco Ent. Co. |
| Nintendo GBA cart. | Kidou Gekidan Harouza Haro Ichiza - Haro no Puyo Puyo Model AGB-BH6J-JPN | 2005 | Bandai Co., Ltd. Japan |
| Arcade Video game | Kidou Senshi Gundam 0079 - Card Builder | 2005 | NAMCO Bandai Games, Inc. Japan |
| Pachislot | Kids Gang | 2005 | Okazaki Sangyo Co., Ltd. Japan |
| Adobe Flash game | Kids' Choice Awards '05 Hangman | 2005 | Nickelodeon Viacom International, Inc. |
| Nintendo GBA cart. | Killer 3D Pool Model AGB-B3LE-USA | 2005 | DSI Games |
| Nintendo GBA cart. | Killer 3D Pool Model AGB-B3LP | 2005 | Zoo Digital Publishing |
| Nintendo GameCube disc | Killer7 | 2005 | Capcom Co., Ltd. Japan |
| Nintendo GameCube disc | Killer7 Model DOL-GK7E-USA | 2005 | Capcom Ent., Inc. USA 13388 |
| Nintendo GameCube disc |  Killer7 Model DOL-GK7P-EUR | 2005 | CE Europe, Ltd. Capcom Europe London, England 055060 |
