Zombie Nation is a 1990 NES action game developed by KAZe and published by Meldac. It was released later in the United States in January 1991. This game features a juxtaposition of zombies, aliens and samurai.

In Zombie Nation, the floating samurai head Namakubi goes to the United States to destroy Darc Seed—an alien who crashed to Earth via a meteorite in 1999, turned all the American people into zombies, and took control of various deadly weapons. Namakubi must recover the samurai sword Shura and destroy Darc Seed and its minions.

Depending on the version of the game, the player controls the giant levitating disembodied samurai head Namakubi or a giant Tengu mask. The player can destroy structures and enemies by shooting rapid-fire eyeballs and vomit at them. Enemies include zombie snipers, zeppelins and lava monsters. The player can upgrade their firepower by rescuing zombie hostages that leap out of structures when destroyed.