As Katsuhiro Hasegawa (長谷川勝弘)

• Altered Beast (SMS)
• Bomb Jack (ボンジャック) (SG)
• Chack'n Pop (チャックン ポップ) (SG)
• Fantasy Zone II - The tears of OPA-OPA / Fantasy Zone II - Opa-Opa no Namida (ファンタジーゾーンＩＩ オパオパの涙) (SMS)
• Ghouls'n Ghosts (대마계촌) (SMS)
• Global Defense / SDI (Strategic Defense Initiative) (SMS)
• Golden Axe (SMS)
• Hang On (ハングオン) (SMS)
• Legend of Illusion - Starring Mickey Mouse (SMS)
• Rock n' Bolt (ロックンボルト) (SG)
• Shinobi (忍 / 시노비) (SMS)
• Teddy Boy / Teddy Boy Blues (テディーボーイ・ブルース) (SMS)

As Hase

• Astérix and the Secret Mission (SMS)
• Batman Returns (SMS)
• Deep Duck Trouble (Starring Donald Duck) (SMS)
• Dr. Robotnik's Mean Bean Machine (GG)
• Dr. Robotnik's Mean Bean Machine (SMS)
• Jurassic Park (SMS)
• Sylvan Tale (シルヴァン テイル) (GG)
• Torarete Tamaruka!? (とられて たまるか！？) (GG)

As The Hase

• Ax Battler - A Legend of Golden Axe / Ax Battler - Golden Axe Densetsu (アックス＝バトラー ゴールデンアックス伝説) (GG)
• The GG Shinobi (The GG忍) / Shinobi (GG)
• Sonic Chaos / Sonic & Tails (ソニック＆テイルス) (GG)
• Sonic Chaos (SMS)
• Sonic The Hedgehog 2 (ソニック・ザ・ヘッジホッグ２) (GG)
• Sonic The Hedgehog 2 (SMS)