Move the UFO with arrow keys. Space to capture cows. Money from cows buys you upgrades. Hacks in the notes and Credits.
Original coding by candyninja SCROLL FOR HACKS: Only read if you want to cheat. All of the top upgrades don't cost anything. Cheats: <^> ??? $m0n3y$ -1$ If you click cheats and type in those cheats (separated by space) you get free money, not that you need it.