You play an alien who feels the need to pick up cows.
I myself am a big fan of cows and it is to my great concern that these majestic beasts are regularly being abducted by aliens. In Moolander you play one of these misguided aliens who feels the need to pick up as many cows as possible.
The controls are done is a similar fashion to Moon Lander (i.e. the name Moolander) You have to have to fly your space ship by using only your boosters while contending with earths gravity.
Note: The link will take you to the games main page. There you can download it or just play it online.