You must destroy the powerful virus that has invaded the Historical Tactical Center. Travel through nine of historys deadliest eras before arriving at the site of the virus itself.

Time is against you, for the virus continues to eradicate the main computers memory. If the computer system is completely contaminated by the virus, you will die. As you travel through time, collect as many non-infected memory circuits as possible. Then you can send those healthy memory circuits back to the main computer each time you reach a memory upload terminal. This will temporarily stall the virus assault on the computer and buy you more precious time to continue your mission.

Unfortunately, your journey will be slowed down by hordes of virtual enemies deployed by the virus. These opponents are the exact recreations of the most vicious warriors ever known during the span of man existence. You must conquer these lethal adversaries, and terminate the virus before time runs out.