ufoshmup

Ufoshmup is a space shoot em up where you are in a spacecraft shooting at alien spacecraft who are shooting at you. They come at you in waves. Each wave the number of aliens and speed at which they fire at you increases. There are various power ups that do things like:
give you 100% health,
increase your firepower,
give you an extra life,
provide you a force field.
keywords: alien ufo shoot em up shmup