Ghosts 'n Goblins is a platform game where the player controls a knight, named Arthur, who must defeat zombies, demons and other undead creatures in order to rescue a princess. Along the way the player can pick up new weapons, bonuses and extra suits of armor that can help in this task. The game is often considered very difficult by arcade standards and is commonly regarded as one of the most difficult games released for the NES. The game did have a two-player feature, but in this mode play simply alternated between the two players.