Gun-Nac

The player assumes the role of commander Gun-Nac, and throughout eight different levels, fights a host of enemies from a space ship. The ship can be upgraded to a larger ship by acquiring a "wing", which allows the player to sustain two enemy hits rather than one, and allows the player to upgrade his weapons further than the standard ship would allow.

The game contains five primary weapons, as well as four types of secondary bombs. Examples of primary weapons are a standard gun, a flamethrower and a type of guided boomerang. All weapons have unlimited ammunition, and they are obtained by collecting circles with numbers that correspond to one of the five different weapons. The primary weapons can be upgraded by collecting multiple "Power P's" that float throughout the stage.

In the distant future, the Earth's resources have been depleted, and many of Earth's inhabitants are moving to the new, artificial planetary system called IOTA Synthetica. The planetary system, like all the planetary systems created by the "Galactic Federation", is very hip and up-scale.

This image ended abruptly though, as a mysterious wave of cosmic radiation swept through the planetary system. This radiation caused ordinary inanimate objects to spring to life, and attack the system's residents.

The American release had a number of things removed or changed, such as the first phase of the last boss, the intro and the ending.

AllGame editor Skyler Miller praised Gun-Nac, describing the game as "perhaps the best shooter for the NES".

Famitsu awarded Gun-Nac a score of 26/40.