- An awesome game by Nicolay Edin and Axel Hammarback (nbstuff.com)].
 - You might also like the Bump Copter series by the same dudes.
 - A chemical plant has started production on the top of the river. Chemicals 
   have now started polluting the river and you are the only one who can stop it 
   with your home made hovercraft with its gun.
 - Instructions and controls are in-game.