Invasion To Earth - action game

Invasion To Earth is a free online flash game of the category action games.

Aliens in Planet Mars were attacked by Humans. You must help three little green aliens to complete their revenge missions by invading earth to steal Human's nuclear rockets, to rescue all captured aliens and other amazing missions.

Key W or Up Arrow : move forward
Key S or Down Arrow : move backward
Key A or Left Arrow : move left
Key D or Right Arrow : move right
Spacebar : release special attack
Moving mouse : change walking direction
left mouse click : shoot.