The aliens can be halted briefly in their path by hitting them with a flame thrower, which can only be used once per life.
When the player interacts with them, the aliens turn blue and become vulnerable to the touch of the human character.
[2] Once all the Alien eggs are destroyed, the player enters a bonus round where they have eight seconds to move to the top of the screen and grab the prize shown there.
"[10] Writing for Arcade Express in 1983, Tracie Forman found the graphics to be cute the game mechanics lacked originality to garner much excitement.
"[1] Reviewing the game for the AllGame, Weiss added that the other drawback was the cartoonish depiction of the aliens, but that "given the graphical limitations of the system, this weakness is understandable.