Factor X

Factor X is an arcade style top down shooter, a massive compilation of a 23 level story mode with 4 bosses and 3 bonus levels and an arcade mode where you compete for highscores and collect "FX" icons, as well as 3 secret gameplay modes (modeled after Resident Evil, Super Mario Kart and Metal Gear). Each of the secret modes is large enough to be a game by itself.

In the story mode the player control a female soldier, who travel in time. Some of the missions included are World War II, the Vietnam War and the future. Gameplay is simple as each level is a single screen. The player must kill all the enemies and defeat the boss. In addition to the shooting, the main heroine can access a special locker where the player can change clothes.