Popular games published by company Hertz

Psychic World is an action platform video game co-developed by Hertz and Sanritsu and published by Sega. Originally released in Japan for the MSX2 as Psycho World in 1988, it was later released as Psychic World on the Master System exclusively in Europe and Game Gear worldwide in 1991.

Hydefos is a shoot 'em up with smooth scrolling, a rarity on the MSX, where the scrolling is usually choppy, and a feat developer Hertz had already accomplished on a previous title, action platformer Psychic World. You pilot one of five ships through levels featuring branching paths, so two play-throughs could be different depending on where you go.