Alien Sizzle 1.0

Alien Sizzle is a simple space arcade shooter where you try to destroy passing UFOs by firing only one missile at a time from your ship, which must be launched at the correct moment. It is based on an old Apple ][ game called Alien Drizzle, but with several enhancements, such as improved graphics, sound, high-score tracking, and extensions to the original gameplay. Freeware.