Space Guardian

A parallel galaxy is under siege. In Space Guardian, a lone pilot carries the last real chance to break an alien invasion. Enemy ships rise from deep space and crowd the screen with fire. Boss craft joins the assault before the sector is free. Survival hangs on one ship long enough to wipe out the attackers and drive the unwanted fleet back into the dark.

How to play?

Shoot every moving target and cut across incoming fire with sharp flight paths. During the run, swap into stronger weapons when the current gun stops punching through the wave. Pick up health and energy to restore lost reserves. Coins drop from destroyed attackers. Once your cash reaches the required amount, buy one of seven upgraded ships and return with heavier firepower.