- Alex Kidd in High Tech World
- Boktai 2: Solar Boy Django
- Castlevania series
- Demon's Crest
- The Legend of Zelda: Oracle of Ages
- The Legend of Zelda: Oracle of Seasons
- Mega Man series - Visit the MMHP passwords page for passwords from Mega Man 2 to Mega Man 7, the first three Mega Man X games, the five Game Boy games, and the Game Gear game.
- The Tower of Druaga (Game Boy)
- Twisted Metal 2
- Twisted Metal III
- Walküre no Bōken: Toki no Kagi Densetsu
- Whirlo / Sandra no Daibōken: Valkyrie to no Deai
- Wonder Boy III: The Dragon's Trap
Community content is available under CC-BY-SA unless otherwise noted.