ZShooter / Shoot 'em upReleasedZero Wing ↗1989 side-scrolling shoot 'em up arcade gameWindows / Linux / macOS / arcade video game machine / Sega Genesis/Mega Drive / TurboGrafx-16
ZPuzzleReleasedZoo Keeper ↗2002 puzzle video gamePlayStation 2 / iOS / Android / Nintendo 3DS / Nintendo DS / Game Boy Advance / arcade video game machine / Adobe Flash