This is an old thread. An updated version with mouse and joystick support can be . I first wrote Reflex for a Commodore 64 in the early 80s. It started out as Centipede but quickly took on a life of its own. Back then it played to the strengths of the machine and was enjoyed by my circle of friends. I have since written it for each type of machine I have acquired and for many of the programming languages I have learned. It is my 'hello world' program Back in the day, the Vic-20, Commodore 64,