Catalypse is a horizontal scrolling shooter computer game released for the Commodore 64 by Genias in 1992, programmed by Andrea Pompili and music written by Michael Tschögl. Players piloted a small space fighter through five long stages collecting four types of power-ups including a spread-shot weapon, a large laser beam, a ricocheting laser and Options. Source: Wikipedia, "Catalypse," available under the CC-BY-SA License.