| Bandai WonderSwan cart. |  Sennou Millennium Model SWJ-BAN025 | 2000 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Shanghai Pocket Model SWJ-SUN001 | 1999 | SUNSOFT Kounan, Japan |
| Bandai WonderSwan cart. | Shin Nihon Pro Wrestling Toukon Retsuden Model SWJ-TMY001 | 1999 | Tomy |
| Bandai WonderSwan cart. | Shougi Touryuumon Model SWJ-SUM005 | 1999 | Sammy Corp. Japan |
| Bandai WonderSwan cart. | Side Pocket for WonderSwan Model SWJ-DTE001 | 1999 | Data East Corp. Japan |
| Bandai WonderSwan cart. | Slither Link Model SWJ-BAN029 | 2000 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Soccer Yarou! Challenge the World Model SWJ-CCJ002 | 1999 | Coconuts Japan |
| Bandai WonderSwan cart. | Sotsugyou for WonderSwan Model SWJ-BVL002 | 1999 | Bandai Visual Co., Ltd. |
| Bandai WonderSwan cart. | Space Invaders Model SWJ-SUN002 | 1999 | SUNSOFT Kounan, Japan |
| Bandai WonderSwan cart. | Super Robot Taisen Compact 2 - Dai-1-bu - Chijou Gekidou-Hen Model SWJ-BPR003 | 2000 | Banpresto Japan |
| Bandai WonderSwan cart. | Super Robot Taisen Compact 2 - Dai-2-bu - Uchuu Gekishin-Hen Model SWJ-BOR006 | 2000 | Banpresto Japan |
| Bandai WonderSwan cart. | Super Robot Taisen Compact 2 - Dai-3-bu - Ginga Kessen-Hen Model SWJ-BPR007 | 2001 | Banpresto Japan |
| Bandai WonderSwan cart. | Super Robot Taisen Compact Model SWJ-BPR001 | 1999 | Banpresto Japan |
| Bandai WonderSwan cart. | Taikyoku Igo - Heisei Kiin Model SWJ-KGT004 | 2000 | Human Ent. Japan |
| Bandai WonderSwan cart. | Tane o Maku Tori Model SWJ-BAN01E | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Tanjou Debut for WonderSwan Model SWJ-BVL003 | 2000 | Bandai Visual Co., Ltd. |
| Bandai WonderSwan cart. | Tare Panda no GunPey Model SWJ-BAN01F | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Tekken Card Challenge Model SWJ-BAN00D | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Terrors Model SWJ-BAN014 | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Tetsujin 28 Gou Model SWJ-MGH001 | 1999 | MegaHouse |
| Bandai WonderSwan cart. | Time Bokan Series - Bokan Densetsu - Butamo Odaterya Doronbou Model SWJ-BPR005 | 2000 | Banpresto Japan |
| Bandai WonderSwan cart. | Tokyo Majin Gakuen - Fuju Houroku Model SWj-AAE001 | 2000 | Asmik Ace Ent., Inc. Japan |
| Bandai WonderSwan cart. | Trump Collection - Bottom-Up Teki Trump Seikatsu Model SWJ-BTM001 | 1999 | Bottom Up Japan |
| Bandai WonderSwan cart. | Trump Collection 2 - Bottom-Up Teki Sekaiisshuu no Tabi Model SWj-BTM002 | 2000 | Bottom Up Japan |
| Bandai WonderSwan cart. | Turntablist - DJ Battle Model SWJ-BAN017 | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Umizuri ni Ikou! Model SWJ-CCJ001 | 1999 | Coconuts Japan |
| Bandai WonderSwan cart. | Uzumaki - Denshi Kaiki-Hen Model SWJ-OMM001 | 2000 | Omage Micott, Inc. |
| Bandai WonderSwan cart. | Vaitz Blade Model SWJ-BAN00C | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Wasabi Produce - Street Dancer Model SWj-BAN028 | 2000 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Wonder Borg Robot Works Model SWj-BAN033 | 2000 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Wonder Stadium '99 Model SWJ-BAN019 | 1999 | Bandai Co., Ltd. Japan |
| Bandai WonderSwan cart. | Wonder Stadium Model SWJ-BAN003 | 1999 | Bandai Co., Ltd. Japan |
