While being a computer on the Amarax station, Arthur is said to have been educated according to Prof. Kenneth Farnstein's obsession with the 20th century. This enables him to make a lot of humorous contemporary pop culture references, puns, impersonations and in-jokes while commenting on the environment. Arthur also makes some metafictional comments, especially in locations unaccessible by the player. For example he might say that the door remains locked because the other room hasn't been modelled and rendered, or because the programmers didn't have enough time.