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.
What's new in Alien Sizzle
A few changes, including a new method of handling high scores.