Ludicrous special effects (the meteor gun) combined with terrific ones (death blossom) make for a funny technological dichotomy
This story has the feel of the entire Star Wars movie wrapped up into one film. Humble hero is discovered and steered towards his destiny of savior.
Alex has a more thoughtful, take charge attitude. He has a hero's heart where Luke Skywalker more or less must be nudged throughout most of his journey.
One of Alex's decisions is rejecting his role knowing full well he's far too sensible a person to be a hero deliberately. He becomes a hero when he's needed, not for glory.
It's a simple story done well. Nice touches that take into account his uncertainty and unprepared condition demonstrate a script that took the time to get science fiction right.
Memorable supporting characters, dialog and villains make The Last Starfighter a surefire hit with the younger crowd that may harbor dreams of being Gunstar pilots themselves.