Mega Force
In the game, the player controls a spaceship called Final Star while shooting down various enemies and destroying enemy structures to score points. Unlike later vertical scrolling shooters such as Toaplan's Twin Cobra, the Final Star only had two weapon powers and no secondary weapons such as missiles and/or bombs. Each stage of the game was named after a letter of the Greek alphabet. In certain versions of the game, there is an additional stage called "Infinity" (represented by the infinity symbol) that occurs after Omega, after which the game repeats indefinitely.