Benefactor is a mix between a puzzle game and a platform game. It has a similar concept to Psygnosis's earlier, very successful Lemmings series of games, but also adds its own ideas.
In Benefactor, the player plays a character called Ben E. Factor, who has resigned from the military to become an overall all-around good guy. Factor's mission is to save a group of "Merry Men", who have been kidnapped from their home planet and imprisoned over 60 levels.
Source: Wikipedia, "http://en.wikipedia.org/wiki/Benefactor_(video_game)," available under the CC-BY-SA License.