Pretty violent alien shooting game even it is in cartoon style
Arrow keys: Run left and right. Duck. Aim up and down.
'A' key: Shoot gun. 'D' key: Jump.

Play this game online: http://www.freegamepark.com/view/20470/Alien-Hominid.htm
Click to play full screen
Right click to download this game (Right click to select 'save target as' or 'save link as')
Free Game Park