| 15 Game | WORLD | |
| Unlicensed |
| 15 Puzzle | WORLD | |
| Unlicensed |
| 15 Puzzle for WW | WORLD | |
| Unlicensed |
| 50 Oto Nyouryoku | WORLD | |
| Unlicensed |
| 7 Days Left | WORLD | |
| Unlicensed |
| Anchorz Field | JP | 1999-06-24 |
Sammy Studios | Commercial |
| Armored Unit | JP | 1999-11-18 |
Sammy Studios | Commercial |
| Atakshii | WORLD | |
| Unlicensed |
| Atodashi | WORLD | |
| Unlicensed |
| B.A.F | WORLD | |
| Prototype |
| BNU | WORLD | |
| Unlicensed |
| Bakusou Dekotora Densetsu for WonderSwan | JP | 1999-12-29 |
Human | Commercial |
| Ball and Block | WORLD | |
| Unlicensed |
| Balloon | WORLD | |
| Unlicensed |
| Battle Mosquito | WORLD | |
| Unlicensed |
| Buffers Evolution | JP | 1999-12-09 |
Bandai | Commercial |
| Buro | WORLD | |
| Unlicensed |
| C-Man | WORLD | |
| Unlicensed |
| Cardcaptor Sakura - Sakura to Fushigi na Clow Card | JP | 1999-12-02 |
Bandai | Commercial |
| Castle | WORLD | |
| Unlicensed |
| Cave Flyer | WORLD | |
| Prototype |
| Chaos Gear - Michibikareshi Mono | JP | 1999-06-10 |
Bandai | Commercial |
| Chikyou o Mamore Ozon-sou | WORLD | |
| Prototype |
| Chocobo no Fushigi na Dungeon for WonderSwan | JP | 1999-03-04 |
Bandai | Commercial |
| Chou Aniki - Otoko no Tamafuda | JP | 2000-02-10 |
Bandai | Commercial |
| Chou Denki Card Battle - Youfu Makai | JP | |
Kobunsha | Commercial |
| Chuuka Taisen | WORLD | |
| Unlicensed |
| Clock Tower for WonderSwan | JP | 1999-12-09 |
Naxat Soft | Commercial |
| Crazy Climber | JP | 1999-07-29 |
Nichibutsu | Commercial |
| D's Garage 21 Koubo Game - Tane o Maku Tori | JP | 1999-12 |
Bandai | Commercial |
| Dash Straight | WORLD | |
| Unlicensed |
| Datchuchu | WORLD | |
| Unlicensed |
| Denkou Keijiki | WORLD | |
| Unlicensed |
| Densha de Go! | JP | 1999-03-04 |
Taito | Commercial |
| Densha de Go! 2 | JP | 1999-10-07 |
CyberFront | Commercial |
| Dexten | WORLD | |
| Unlicensed |
| Digimon - Ver. WonderSwan | HK | 2000 |
Bandai | Commercial |
| Digimon Adventure - Anode Tamer | JP | 1999-12-16 |
Bandai | Commercial |
| Digimon Adventure - Cathode Tamer | JP | 2000-01-20 |
Bandai | Commercial |
| Digimon Adventure 02 - Tag Tamers | JP | 2000-08-03 |
Bandai | Commercial |
| Digimon Adventure Campaign | JP | |
| Commercial |
| Digital Monster - Ver. WonderSwan | JP | 1999-03-25 |
Bandai | Commercial |
| Digital Partner | JP | 2000-05-25 |
Bandai | Commercial |
| Disc Upper | WORLD | |
| Unlicensed |
| Dokodemo Hamster | JP | 2000-01-06 |
BEC | Commercial |
| Dolls | WORLD | |
| Unlicensed |
| EF-Cribbage | WORLD | |
| Prototype |
| Engacho! for WonderSwan | JP | 1999-10-28 |
Nihon Application | Commercial |
| Features | WORLD | |
| Unlicensed |
| Fever - Sankyo Koushiki Pachinko Simulation for WonderSwan | JP | 1999-12-09 |
BEC | Commercial |
| Final Lap 2000 | JP | 2000-03-23 |
Bandai | Commercial |
| Fire Pro Wrestling for WonderSwan | JP | 2000-08-31 |
Kaga Tech | Commercial |
| Fishing Freaks - Bass Rise for WonderSwan | JP | 2000-02-24 |
BEC | Commercial |
| From TV Animation One Piece - Mezase Kaizoku Ou! | JP | 2000-07-19 |
Bandai | Commercial |
| Frontier | WORLD | |
| Unlicensed |
| GB Yu-Gi-Oh Database | WORLD | |
| Unlicensed |
| Gachagacha Nyouryoku | WORLD | |
| Unlicensed |
| Ganso Jajamaru-kun | JP | 1999-04-15 |
Jaleco | Commercial |
| Glocal Hexcite | JP | 2000-06-29 |
Success | Commercial |
| Gomoku Narabe & Reversi - Touryuumon | JP | 2000-01-13 |
Sammy Studios | Commercial |
| Goraku Ou Tango! | JP | 1999-04-01 |
Mebius | Commercial |
| GunPey | JP | 1999-03-04 |
Bandai | Commercial |
| Hanafuda Shiyouyo | JP | 2000-02-17 |
Success | Commercial |
| Harobots | JP | 1999-10-07 |
Sunrise Software | Commercial |
| Hayauchi! | WORLD | |
| Unlicensed |
| Hex Calculator | WORLD | |
| Unlicensed |
| Hima Tsubushi | WORLD | |
| Unlicensed |
| Hito | WORLD | |
| Unlicensed |
| Hunter X Hunter - Ishi o Tsugu Mono | JP | 2000-06-01 |
Bandai | Commercial |
| Inu Renda | WORLD | |
| Unlicensed |
| Invader DX & Boss DX | WORLD | |
| Unlicensed |
| Ishikari | WORLD | |
| Unlicensed |
| Jiban Ryuoki - WonderSwan Edition | WORLD | |
| Unlicensed |
| Jump on Step | WORLD | |
| Unlicensed |
| Kakutou Ryouri Densetsu Bistro Recipe - Wonder Battle Hen | JP | 1999-09-30 |
Banpresto | Commercial |
| Kana | WORLD | |
| Unlicensed |
| Kaze no Klonoa - Moonlight Museum | JP | 1999-05-20 |
Bandai | Commercial |
| Keiba Yosou Shien Soft - Yosou Shinkaron | JP | 1999-09-14 |
Media Entertainment | Commercial |
| Kirin Editor + Kuro Pad | WORLD | |
| Unlicensed |
| Kiss Communication | WORLD | |
| Unlicensed |
| Kiss Yori... - Seaside Serenade | JP | 1999-12-02 |
Kindle Imagine Develop | Commercial |
| Kosodate Quiz - Dokodemo My Angel | JP | 1999-04-15 |
Namco | Commercial |
| Kyousouba Ikusei Simulation - Keiba | JP | 1999-11-18 |
BEC | Commercial |
| LNPUT | WORLD | |
| Unlicensed |
| Langrisser Millennium WS - The Last Century | JP | 2000-03-09 |
NCS | Commercial |
| Last Stand | JP | 1999-05-27 |
Bandai | Commercial |
| LifeGame for WonderWitch | WORLD | |
| Unlicensed |
| Lode Runner for WonderSwan | JP | 2000-04-20 |
Banpresto | Commercial |
| Mac the Speed Shooter | WORLD | |
| Prototype |
| Macross - True Love Song | JP | 2000-03-23 |
Layup - Upstar | Commercial |
| Magical Drop for WonderSwan | JP | 1999-10-14 |
Data East | Commercial |
| Mahjong Touryuumon | JP | 1999-03-11 |
Sammy Studios | Commercial |
| Makaimura for WonderSwan | JP | 1999-07-22 |
Bandai | Commercial |
| Medarot Perfect Edition - Kabuto Version | JP | 1999-05-04 |
Imagineer | Commercial |
| Medarot Perfect Edition - Kuwagata Version | JP | 1999-05-04 |
Imagineer | Commercial |
| Meitantei Conan - Majutsushi no Chousenjou! | JP | 1999-08 |
Bandai | Commercial |
| Meitantei Conan - Nishi no Meitantei Saidai no Kiki! | JP | 2000-07 |
Bandai | Commercial |
| Metakomi Theraphy - Nee Kiite! | JP | 2000-03-23 |
Media Enterprise | Commercial |
| Migi Mawari no Randi | WORLD | |
| Prototype |
| Mingle Magnet | JP | 1999-11-02 |
HAL Laboratory | Commercial |