- Action > Shooter > Shoot-'Em-Up > Vertical
INVADERS FROM HYPERSPACE! Swarms of sinister alien space ships materialize and attack outpost solar systems in a remote corner of the United Planets Interstellar Galactic Empire. Science fiction turns science fact in this incredibly fast-moving and realistic war of the worlds. You'll need lightning reflexes and instantaneous strategic insights to protect all the planets in your two vulnerable solar systems from the invasion fleet! Digital scoring! Sync-sound action!