Barbarian is a 1987 computer platform game by Psygnosis. It was first developed for the Atari ST, but eventually ported to other popular platforms of the home computer era.
In the game, the player is Hegor, a barbarian who must traverse several dungeons and underground habitats to defeat his brother, the evil sorcerer Necron. He has a sword and bow in his arsenal of weapons. Running and jumping, as with many platform games, comprises a large part of the gameplay of this title.
The game used a unique control system to make up for lack of more than one joystick button on many systems. The player would first press the one button after which a "menu" of actions would appear along the bottom of the screen. The player then selected the desired action by cycling through the choices with the joystick and then pressing the button again when the desired action was highlighted.
In the original versions, this game tried to emulate the visual style of the game cover and opening animation. The game used very detailed and colorful sprites and a variety of thoughtful sound effects to accompany the onscreen action. The DOS version played digitized speech in the opening sequence and featured other sound effects using the PC speaker.
Source: Wikipedia, "http://en.wikipedia.org/wiki/Barbarian_%28Psygnosis%29" available under the CC-BY-SA License.