Qui una guida (in inglese) su come giocare su Internet Arcade, molto importante la notazione dei comandi da tastiera utilizzabili. Qui invece le FAQ di Internet Archive sulla risoluzione dei problemi, anche queste in inglese.
Gorf is an arcade game released in 1981 by Midway Mfg., whose name was advertised as an acronym for Galactic Orbiting Robot Force. It is a multiple-mission fixed shooter with five distinct modes of play, essentially making it five games in one. It is well known for its use of synthesized speech, a new feature at the time. The player controls a spaceship that can move left, right, up and down around the lower third of the screen. The ship can fire a single shot (called a quark laser in this game), which travels vertically up the screen. Unlike similar games, where the player cannot fire again until his existing shot has disappeared, the player can choose to fire another shot at any time; if the previous shot is still on screen, it disappears. Gorf consists of five distinct missions, each with its own patterns of enemies. The central goal of each mission is to destroy all enemies in that wave, which takes the player to the next mission. Successfully completing all five missions will increase the player's rank and loop back to the first mission, where play continues on a higher difficulty level. The game continues until the player loses all their lives.