Take on the roles of RDF officers aboard the Super Dimensional Fortress-1. You're the last line of defense against the massive invading Zentraedi fleet. After hours of raging battle, SDF-1's Armor is failing, the Hull is buckling, Life Support systems are critical, and the Bridge is in chaos! It's time to band together for the final battle. Report ship status, give emergency commands, and keep the SDF-1 functional all while returning fire against the relentless Zentraedi forces. Survive the last crucial minutes of battle or destroy the enemy fleet to save the Earth from annihilation!