Pilot a heavily armed spacecraft to vanquish evil aliens and forge a new peace in this original GBA title from Formula. Inhabitants of the Alpha Necronis solar system are no strangers to war. The citizens of the system's two life-supporting planets, Rygot and Ixaban, have been bitter rivals for 600 years.
The true enemy is far more sinister, however. When it is realized that the generations of conflict between the two planets were fueled by an alien third party, known as "the Swarm," Rygot and Ixaban put aside past differences and join to fight against this common enemy.
Choose to pilot either a Rygotian or an Ixaban craft through eight different worlds, each stocked with scores of alien enemies. Steer the fighter craft from a top-down perspective across varied landscapes brought to life by accurate shadows, transparent water, multi-layer parallax scrolling, and other state-of-the-art effects. Invader offers four modes of play, including a cooperative multiplayer mode through a link cable connection.