Saturday 1 May
29 releases
- Malkari PC
- All-Star Baseball 2000 Nintendo 64Iguana Entertainment
- All-Star Baseball 2000 Game Boy Color
- Battle Bakraid ArcadeRaizing
- Blood Lines PlayStation
- Bomberman Quest Game Boy ColorEleven
- Capcom Generations 5: Street Fighter Collection 2 PlayStationCapcom
- Centipede PlayStationLeaping Lizard
- Culdcept Expansion PlayStationOmiya Soft
- Falcon 4.0 MacMicroProse Software, Inc.
- Fatal Fury: First Contact Neo Geo Pocket Color
- Golden Axe ArcadeTeam Shinobi
- Goraku-Ou Tango! WonderSwan
- Grand Theft Auto: London 1969 PlayStationDMA Design
- Lucky Luke Game Boy ColorInfogrames
- Machines PCCharybdis
- Marvel Super Heroes vs. Street Fighter PlayStationCapcom
- May Club PC
- Midtown Madness PCAngel Studios
- Monsterseed PlayStation
- Polda 2 PCZima Software
- Pro 18: World Tour Golf PlayStation
- Quest: Fantasy Challenge Game Boy Color
- Rollcage: Limited Edition PlayStation
- Sangokushi for WonderSwan WonderSwaniNiS
- Shanghai Pocket WonderSwanSUNSOFT
- Tamagotchi Town Super FamicomMarigul Management
- The Quivering DOS, PCCharybdis
- Umizuri ni Ikou! WonderSwan
Sunday 2 May
1 release
- Tane o Maku Tori WonderSwanLudic
Monday 3 May
1 release
- South Park Nintendo 64Iguana Entertainment
Tuesday 4 May
11 releases
- A-Ressha de Ikou Z: Mezase! Tairiku Oudan PlayStationArtdink
- Dragon Money PlayStationE.O. Imagination
- Ehrgeiz PlayStationDreamFactory
- Logic Mahjong Souryu: Yon-nin Uchi / San-nin Uchi PlayStationNippon Ichi Software
- Medarot: Perfect Edition - Kabuto Version WonderSwanNatsume Inc.
- Medarot: Perfect Edition - Kuwagata Version WonderSwanNatsume Inc.
- Moto Racer 2 PlayStationDelphine Software
- Novels: Game Center Arashi R PlayStation
- Pocket Dungeon PlayStation, PocketStationArc Entertainment
- R4: Ridge Racer Type 4 PlayStationNamco
- Ridge Racer: Turbo Mode PlayStationNamco
Wednesday 5 May
1 release
- Fleet Command PCSonalysts
Friday 7 May
1 release
- Poy Poy 2 PlayStation
Sunday 9 May
1 release
- Onegai Monsters Nintendo 64Bottom Up
Monday 10 May
6 releases
- Ken Griffey Jr.'s Slugfest Nintendo 64Angel Studios
- Ken Griffey Jr.'s Slugfest Game Boy ColorSoftware Creations
- Point Blank 2 PlayStationNamco Limited
- Puma Street Soccer PCSUNSOFT
- Sonic the Hedgehog Beta Hoax Sega Mega Drive/Genesis
- Super Mario Bros. Deluxe Game Boy ColorNintendo R&D2
Tuesday 11 May
2 releases
- Alien Nations PCNeo Software Produktions
- ISS Pro Evolution PlayStationKonami Computer Entertainment Tokyo
Wednesday 12 May
2 releases
- Pumuckls Abenteuer bei den Piraten Game Boy ColorNEON Software
- Street Fighter III: 3rd Strike ArcadeCapcom Production Studio 2
Thursday 13 May
1 release
- Aliens versus Predator PCRebellion Developments
Friday 14 May
3 releases
- Castlevania Nintendo 64Konami
- Puma Street Soccer PlayStationSUNSOFT
- R-Type Delta PlayStationIrem
Saturday 15 May
8 releases
- Cardcaptor Sakura: Itsumo Sakura-chan to Issho! Game Boy Color
- Dokodemo Mahjong Neo Geo Pocket Color
- Ganso JaJaMaru-kun WonderSwanJaleco
- Kosodate Quiz Dokodemo: My Angel WonderSwanNamco Limited
- Mad Trax PC
- Magic & Mayhem PCMythos Games
- Requiem: Avenging Angel PCCyclone Studios
- Wild Metal PCDMA Design
Monday 17 May
1 release
- Iron Maiden: Ed Hunter PCSynthetic Dimensions
Tuesday 18 May
2 releases
- Star Wars: Episode I - Racer Nintendo 64, PCLucasArts
- Star Wars Episode I: The Phantom Menace PCBig Ape Productions
Thursday 20 May
11 releases
- 6 Inch My Darling PCKID
- Dosukoi Densetsu PlayStationKSS
- F-22 Lightning 3 PCNovaLogic
- Gekioh: Shooting King PlayStationWarashi
- Kaze no Klonoa: Moonlight Museum WonderSwanNamco
- London Seirei Tantei-dan PlayStationUNiT
- Marionette Company PlayStationMicro Cabin
- Tamago de Puzzle PlayStation
- T.R.A.G.: Tactical Rescue Assault Group - Mission of Mercy PlayStationSUNSOFT
- USS Darkstar PCBlack Widow Games
- Yagami Hiroki no Game-Taste: Munasawagi no Yokan PlayStationNihon Create
Friday 21 May
6 releases
- Royal Blood II PC
- Assault on Tei Tenga PCSam Ketner
- Buriki One Hyper Neo Geo 64SNK
- C-evo PCSteffen Gerlach
- Rampage 2: Universal Tour Nintendo 64Avalanche Software
- Wet Attack: The Empire Cums Back PCInteractive Strip
Sunday 23 May
1 release
Monday 24 May
1 release
- Star Wars: Episode I - The Gungan Frontier PCLucas Learning
Tuesday 25 May
1 release
- Star Trek: The Next Generation - Birth of the Federation PCMicroProse Software, Inc.
Wednesday 26 May
2 releases
- Bloody Roar 2 PlayStationRaizing
- Castrol Honda: World Superbike Team - Superbike Racing PlayStationMidas Interactive Entertainment
Thursday 27 May
18 releases
- 70's Robot Anime Geppy-X PlayStationAroma
- Ace Combat 3: Electrosphere PlayStationNamco
- Asuka 120% Final Burning Fest. PlayStationFamilySoft
- Beatmania Append Gottamix PlayStationKonami Computer Entertainment Japan
- Chou Jikuu Yousai Macross: Ai Oboete Imasuka PlayStationScarab
- Dynamite Cop DreamcastSEGA AM1
- Elemental Gimmick Gear DreamcastBirthday
- Fatal Fury: First Contact Neo Geo Pocket Color
- Inoue Takehiko: Buzzer Beater - Kouhen PlayStationArc Entertainment
- Inoue Takehiko: Buzzer Beater - Zenpen PlayStationArc Entertainment
- Lunar 2: Eternal Blue Complete PlayStationGame Arts
- Metal Slug 1st Mission Neo Geo Pocket Color
- Metal Slug X Arcade, Neo Geo AESSNK
- Monster Complete World PlayStationIdea Factory
- Roll Away PlayStationGame Design Sweden AB
- SuperLite 1500 Series: Nankuro PlayStationSuccess
- SuperLite 1500 Series: Oekaki Puzzle 1 PlayStationSuccess
- SuperLite 1500 series: Sudoku PlayStationSuccess
Friday 28 May
7 releases
- Aisle Linux, Mac, PC, Web browserSam Barlow
- Comic Party PCAquaplus
- Hello Kitty no Magical Museum Game Boy ColorAtelier Double
- Last Legion UX Nintendo 64Yuke's
- Lunar: Silver Star Story Complete PlayStationGame Arts
- Suzu ga Utau Hi PCTactics
- Worms Armageddon PCInfogrames
Saturday 29 May
2 releases
- Gakkyu Ou Yamazaki Game Boy ColorKoei
- Tails Race PCmightydillo
Sunday 30 May
8 releases
- A Bug's Life Game Boy ColorTiertex Design Studios
- Alexi Lalas International Soccer PlayStationZ-Axis
- Bust-A-Move Pocket Neo Geo Pocket Color
- Corsairs Gold PC
- Neo Cherry Master Color Neo Geo Pocket Color
- Neo Dragon's Wild Neo Geo Pocket Color
- Neo Mystery Bonus Neo Geo Pocket Color
- Pocket Tennis Color Neo Geo Pocket Color
Monday 31 May
17 releases
- Baseball Stars Neo Geo Pocket ColorSNK
- Bugs Bunny: Lost in Time PlayStationBehaviour Interactive
- Evil Zone PlayStationYuke's
- Heavy Gear II PCActivision
- Jeff Gordon XS Racing PCNatsume Inc.
- Midway Presents Arcade Hits: Moon Patrol/Spy Hunter Game Boy Color
- Might and Magic VII: For Blood and Honor PCNew World Computing
- Moon Patrol Game Boy Color
- PGA Championship Golf 1999 Edition PCHeadGames
- Shadowgate 64: Trials of the Four Towers Nintendo 64Infinite Ventures
- Spy Hunter Game Boy Color
- Star Ocean: The Second Story PlayStationtri-Ace
- Superman: The New Superman Adventures Nintendo 64Titus Software
- Unreal: Return to Na Pali PCLegend Entertainment
- Viewpoint PCSammy
- Warzone 2100 PlayStationWarzone 2100 Project
- World Driver Championship Nintendo 64Boss Game Studios
Dates come from IGDB and move when publishers change them. Following counts are IGDB followers.