| Sony PlayStation CD |  Blockids Model SLUS-01496 | 2003 | Natsume, Inc. Japan |
| PC/MS-Windows CD |  BloodRayne | 2003 | Majesco Sales, Inc. |
| Pachislot | Blue Fang | 2003 | Eipex Tokyo, Japan |
| Slot Machine | Blue Ice | 2003 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Video Slot Machine | Blue Moon II Classics | 2003 | IGT International Game Technologies Reno, NV, USA |
| Sega Dreamcast GD | Blue-Sky-Blue(s) - Sora o Mau Tsubasa Model T-23204M | 2003 | Ecole Soft. |
| Sega Dreamcast GD | Blue-Sky-Blue(s) - Sora o Mau Tsubasa Model T-23205M | 2003 | Ecole Soft. |
| Arcade Video game | BnB Arcade | 2003 | Eolith Co., Ltd. |
| Nintendo GBA cart. | Boboboubo Boubobo - Maji de!!? Shinken Battle Model AGB-BOBJ-JPN | 2003 | Hudson Soft. Hudson Group Japan |
| PC/MS-Windows CD | Boggle Boggle X | 2003 | Bisco Korea |
| Nintendo GBA cart. | Boktai - The Sun is in Your Hand Model AGB-U3IE-USA | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Bokujou Monogatari - Mineral Town no Nakama-tachi for Girl Model AGB-BFGJ-JPN | 2003 | Marvelous Interactive, Inc. |
| Nintendo GBA cart. | Bokujou Monogatari - Mineral Town no Nakama-tachi Model AGB-A4NJ-JPN | 2003 | Victor Interactive Soft., Inc. |
| Nintendo GBA cart. | Bokura no Taiyou - Taiyou Action RPG Model AGB-U3IJ-JPN | 2003 | Konami Corp. Japan |
| PC/MS-Windows CD | Bomberman Collection | 2003 | Konami of America CA, USA |
| Nintendo GBA cart. | Bomberman Jetters - Game Collection Model AGB-BOMJ-JPN | 2003 | Hudson Soft. Hudson Group Japan |
| Nintendo GameCube disc | Bomberman Land 2 | 2003 | Hudson Soft. Hudson Group Japan |
| Slot Machine | Bonus Hand Triple Play Draw Poker | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Bonus Jacks Poker | 2003 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Bonus Spin ZX | 2003 | Aruze Corp. Japan |
| Slot Machine | Bonus Times Pay | 2003 | IGT International Game Technologies Reno, NV, USA |
| Amstrad CPC 464 disk | Bonz Hb | 2003 | CPC Oxygen |
| Nintendo GBA cart. | Bookworm Model AGB-BKWE-USA | 2003 | Majesco Sales, Inc. |
| Sega NAOMI GD-ROM | Border Down Model GDL-0023 | 2003 | G.Rev |
| Sega Dreamcast GD | Border Down Model T-46702M | 2003 | G.Rev |
| Sega Dreamcast GD | Border Down Model T-46703M | 2003 | G.Rev |
| PC/MS-Windows CD | Bosei - Mama Club | 2003 | Complet's |
| Nintendo GBA cart. | Bouken Yuuki Pluster World - Densetsu no Plust Gate EX Model AGB-BPDJ-JPN | 2003 | Takara Co., Ltd. Japan |
| Nintendo GBA cart. | Bouken Yuuki Pluster World - Densetsu no Plust Gate Model AGB-APJJ-JPN | 2003 | Takara Co., Ltd. Japan |
| Nintendo GBA cart. | Bouken Yuuki Pluster World - Pluston GP Model AGB-A2PJ-JPN | 2003 | Takara Co., Ltd. Japan |
| Commodore C64 disk | Boulder Dash Pro 2 Hb | 2003 | Bogger, Bert |
| Slot Machine | Bowzer's Rock n' Roll Party | 2003 | AC Coin & Slot USA |
| Nintendo NES cart. | Box Boy Hb | 2003 | Tew, Neal |
| Strength Tester | Boxer - Airbrush Painted | 2003 | Kriss-Sport Zory, Poland |
| Sony PlayStation 2 disc | Boxing Champions Model SLES-51717 | 2003 | Midas Int. Ent. |
| Sony PlayStation CD | Bratz - Dress Up, Get Down and Be a Bratz Superstar! Model SLUS-01508 | 2003 | Ubisoft, Inc. San Francisco, CA, USA 08888 |
| Nintendo GBA cart. | Bratz Model AGB-A2RE-USA | 2003 | UBI Soft Ent., Inc. San Francisco, CA, USA 08888 |
| Nintendo GBA cart. | Bratz Model AGB-A2RP | 2003 | Ubisoft Ent. Montreuil sous Bois, France |
| Pachinko | Bravo 5 | 2003 | Heiwa Japan |
| Pachinko | Bravo Zekkou Tori | 2003 | Heiwa Japan |
