Description: Angry aliens are invading earth! Shoot the invaders while teaching them a thing or two about physiology! Your knowledge and shooting skills just might save the world!
Instructions: We will ask you a question or give you a clue. Shoot the alien commander with the vocabulary term that best matches the question or clue!
Controls:
Left arrow = move left
Right arrow = move right
Spacebar = shoot
Special:
Down arrow = grenades
(levels 4, 6, 7, 8 and 9 only)
