Space Shooter: Alpha Impact (2001)

Space Shooter: Alpha Impact is a shoot-'em-up where years after an alien armada invaded the Planet Earth, a human resistance group to the alien invasion manages to clandestinely build a powerful spaceship capable of traveling back in time to the date of the invasion, in order to save Earth from its terrible fate.

• Release Date: December 31, 2001
• Developer: Oniria Entertainment