Assault Suits Leynos[a] is a run and gun video game developed and published in 1990 by Masaya for Sega Genesis.

With this backdrop, the story begins with a war between Earth (and its colonies) fighting a cyborg army returning from deep space.

The assortment of armaments increased replay value by encouraging the player to experiment with ways to defeat enemies.

While the official information for the game indicates that it is only single-player, it is possible for a second player to have limited control over enemy movement and attacks on screen.

For example, a scene in which a comrade does not make it back to the ship in time and burns up in the planet's atmosphere was removed.

The Western localization of the second game in the Assault Suits series, Cybernator, was subject to censorship.