The Guardian Legend is a 1988 hybrid action-adventure/shoot 'em up video game developed by Compile for the Nintendo Entertainment System (NES). It is the sequel to the 1986 MSX game Guardic. In the game, the player controls a lone protagonist, the Guardian, who is on a quest to destroy a large alien-infested world named Naju before it reaches the planet Earth. The player must deactivate ten safety devices scattered throughout Naju, thus activating the alien world's self-destruct sequence. The player explores Naju in a non-linear fashion and can acquire different weapons during the course of the game.