Syntax? Where did they get that name from! Earth is once again In great peril. Rebel forces, for twenty years bent on popping the earth, have now taken over the planet Syntax.
Their plan is to use the planet's molten core to fuel a new weapon, a computer controlled sub-atomic disintegrator (oh no, not one of those!). Banging away building this weapon brings them to the notice of earth authorities, and now volunteers are needed to go and stop the rebel plan...
Stupidly you volunteer to go on this suicide mission, and now you're stuck with it. You must go to the planet and find the ten crystals which will save earth from certain doom.
What Syntax boils down to is one of those scrolly, over detailed background shoot 'em ups: totally confusing, especially when It is all in monochrome. The game is put together really badly and full of stupid programming mistakes. You might get some enjoyment out of this if you are a glutton for punishment, otherwise look elsewhere.