If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Earth is being invaded by an alien race and the only chance humanity stands at defeating the alien invaders lays buried in our past. Journey back in time to exotic lands and uncover an ancient alien superweapon - makind's survival depends on it.
The main player controls are W, A, S, D - H for xVision - J for Plasma gun
Additional controls are UP, DOWN, LEFT, RIGHT arrow keys - N for xVision - Space for Plasma gun.