Ninkuu Gaiden: Hiroyuki Daikatsugeki (忍空外伝 - ヒロユキ大活劇) is a Sega Game Gear top-down action game based on the Ninkuu franchise.
Ninku (忍空) is a Sega Game Gear action game based on the anime series of the same name.
Ninku 2: Tenkuryuu he no Michi is a Sega Game Gear sequel to Ninku.
A Ninku 2D fighting game.