| Nintendo GBA cart. |  Konchuu Monster Battle Master Model AGB-BQBJ-JPN | 2005 | Culture Brain |
| Nintendo GBA cart. | Konchuu Monster Battle Stadium Model AGB-BQSJ-JPN | 2005 | Culture Brain |
| Nintendo GBA cart. | Konchuu no Mori no Daibouken - Fushigi na Sekai no Juunin-tachi Model AGB-BQKJ-JPN | 2005 | Culture Brain |
| Nintendo GBA cart. | Kong - King of Atlantis Model AGB-BK7E-USA | 2005 | Majesco Ent. Co. |
| Nintendo GBA cart. | Kong - King of Atlantis Model AGB-BK7P | 2005 | Majesco Ent. Co. |
| Nintendo GBA cart. | Kong - The 8th Wonder of the World Model AGB-BKQE-USA | 2005 | Ubisoft Ent. Montreuil sous Bois, France |
| Nintendo GBA cart. | Konjiki no Gashbell!! The Card Battle for GBA Model AGB-BKEJ-JPN | 2005 | Banpresto Japan |
| Nintendo GBA cart. | Konjiki no Gashbell!! Yuujou no Zakeru - Dream Tag Tournament Model AGB-BUDJ-JPN | 2005 | Banpresto Japan |
| Nintendo Game Boy Color cart. | Kou Dai Yao Guai - Bai Jin Ban | 2005 | Sintax China |
| Nintendo GBA cart. | Kouchu Ouja Mushiking - Greatest Champion e no Michi Model AGB-BK6J-JPN | 2005 | SEGA Corp. |
| Sega Beena cart. | Kouchuu Ouja Mushiking - Mori no Tami no Densetsu: Minna de Tanken! Kouchuu no Mori | 2005 | SEGA Toys |
| Slot Machine | Krak'n Keno | 2005 | IGT International Game Technologies Reno, NV, USA |
| MSX cart. | Kralizec Tetris Hb | 2005 | Kralizec |
| Slot Machine | Kron Prinz | 2005 | Bally Wulff |
| Nintendo GBA cart. | Kunio Kun Nekketsu Collection 1 Model AGB-B9AJ-JPN | 2005 | Atlus Co., Ltd. Japan |
| Nintendo GBA cart. | Kunio Kun Nekketsu Collection 2 Model AGB-B9BJ-JPN | 2005 | Atlus Co., Ltd. Japan |
| Redemption mechanical game | Kuru.Kuru-Count! | 2005 | Komaya Co., Ltd. Japan |
| Pachinko | Kyojin no Hoshi 2 | 2005 | Takao Co., Ltd. Japan |
| Pachislot | Kyojin no Hoshi III Art. 1 | 2005 | Aristocrat Technologies Co., Ltd. Tokyo, Japan |
| Pachislot | Kyojin no Hoshi III Art. 2 | 2005 | Aristocrat Technologies Co., Ltd. Tokyo, Japan |
| Microsoft XBOX disc | L. A. Rush | 2005 | Unknown |
| Slot Machine | L.A. Gator | 2005 | Aristocrat Leisure Industries Pty, Ltd. |
| Amstrad CPC 464 disk | La Planete Mysterieuse Hb | 2005 | Demoniak |
| Microsoft XBOX disc | Land of the Dead - Road to Fiddler's Green | 2005 | Unknown |
| Pachinko | Lassen World | 2005 | Heiwa Japan |
| Medal video game | Latin King | 2005 | Yeo Myung Electronic Co., Ltd. Korea |
| PC/MS-Windows CD | Law & Order - Criminal Intent | 2005 | Vivendi Universal Games, Inc. |
| Slot Machine | Lawman's Loot | 2005 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Medal video game | Le Grand Bleu | 2005 | Unknown Korea |
| VTECH V.Smile cart. | Le Monde d'Elmo - Les Grandes Découvertes D'Elmo | 2005 | VTECH Video Technology, Ltd. |
| Dedicated Console | Leapster TV | 2005 | LeapFrog |
| PC/MS-Windows CD | Left Behind - The Trivia Game | 2005 | Left Behind Games |
| PC/MS-Windows CD | Left Behind - World at War | 2005 | Left Behind Games |
| Medal video game | Legend of Dragon | 2005 | Unknown Korea |
| Slot Machine | Legend of El Dorado | 2005 | Aruze Corp. Japan |
| Nintendo GBA cart. | Legendz - Sign of Nekuromu Model AGB-BLVJ-JPN | 2005 | Bandai Co., Ltd. Japan |
| PC/MS-Windows CD | Legion Arena | 2005 | Strategy First |
| Medal video game | Lego Plus | 2005 | Unknown Korea |
| PC/MS-Windows CD | Lego Star Wars | 2005 | Eidos Interactive |
| Microsoft XBOX disc | LEGO Star Wars - The Video Game | 2005 | Unknown |
