| Nintendo GBA cart. |  Blackthorne Model AGB-AQXE-USA | 2003 | Blizzard Ent., Inc. |
| Nintendo GBA cart. | Blackthorne Model AGB-AQXP | 2003 | Blizzard Ent., Inc. |
| Nintendo GBA cart. | Boboboubo Boubobo - Maji de!!? Shinken Battle Model AGB-BOBJ-JPN | 2003 | Hudson Soft. Hudson Group Japan |
| 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 |
| Nintendo GBA cart. | Bomberman Jetters - Game Collection Model AGB-BOMJ-JPN | 2003 | Hudson Soft. Hudson Group Japan |
| Nintendo GBA cart. | Bookworm Model AGB-BKWE-USA | 2003 | Majesco Sales, Inc. |
| 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 |
| 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 |
| Nintendo GBA cart. | Brother Bear Model AGB-ALEP-EUR | 2003 | Disney Interactive |
| Nintendo GBA cart. | Bubble Bobble - Old & New Model AGB-AONE-USA | 2003 | Empire Interactive Europe, Ltd. |
| Nintendo GBA cart. | Bubble Bobble - Old & New Model AGB-AONP-EUR | 2003 | Empire Interactive Europe, Ltd. |
| Nintendo GBA cart. | Buffy - Im Bann der Dämonen | 2003 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo GBA cart. | Buffy contre les Vampires | 2003 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo GBA cart. | Buffy the Vampire Slayer Model AGB-AVYE-USA | 2003 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo GBA cart. | Buffy the Vampire Slayer Model AGB-AVYP | 2003 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo GBA cart. |  Captain Harlock | 2003 | Otaboo |
| Nintendo GBA cart. | Cardcaptor Sakura - Sakura Card de Mini Game Model AGB-BK3J-JPN | 2003 | TDK Core |
| Nintendo GBA cart. | Cartoon Network Speedway Model AGB-ANRE-USA | 2003 | Majesco Sales, Inc. |
| Nintendo GBA cart. | Castlevania - Akatsuki no Minuet Model AGB-A2CJ-JPN | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Castlevania - Aria of Sorrow Model AGB-A2CE-USA | 2003 | Konami of America CA, USA |
| Nintendo GBA cart. | Castlevania - Aria of Sorrow Model AGB-A2CP | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | CIMA - The Enemy Model AGB-BCME-USA | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Cinnamoroll - Koko ni Iru yo Model AGB-BPSJ-JPN | 2003 | Imagineer Co., Ltd. Japan |
| Nintendo GBA cart. | Contra Advance - The Alien Wars EX Model AGB-AAWP | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Corvette Model AGB-AVCE-USA | 2003 | TDK Mediactive, Inc. |
| Nintendo GBA cart. | Crash Bandicoot 2 - N-Tranced Model AGB-AC8E-USA | 2003 | Universal Interactive Studios, Inc. |
| Nintendo GBA cart. | Crash Bandicoot 2 - N-Tranced Model AGB-AC8P | 2003 | Universal Interactive Studios, Inc. |
| Nintendo GBA cart. | Crash Bandicoot Advance 2 - Guruguru Saimin Dai-panic!? Model AGB-AC8J-JPN | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Crash Nitro Kart Model AGB-BCNE-USA | 2003 | Vivendi Universal Games, Inc. |
| Nintendo GBA cart. |  Crash Nitro Kart Model AGB-BCNP | 2003 | Vivendi Universal Games, Inc. |
| Nintendo GBA cart. | Croket! 2 - Yami no Bank to Banqueen Model AGB-BK2J-JPN | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Croket! 3 - Granu Oukoku no Nazo Model AGB-B3KJ-JPN | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | CT Special Forces - Back to Hell Model AGB-A9CP | 2003 | LSP Light & Shadow Production |
| Nintendo GBA cart. | Cyberdrive Zoids - Kijuu no Senshi Hyuu Model AGB-AZ3J-JPN | 2003 | Tomy |
