Have you ever played The Game Battleship well this the out in the field version. You must sink all battleships before your ammo runs out. To start the game, stand in the middle of the field and select the "Start Game" item.
The ships will be hidden from view until you damage one. To shoot where you are standing, select the caliber shell from your inventory and click the "Fire!" button. All ships within the shell's area of effect will be damaged.
To win the game, you must sink all five ships before your ammunition runs out.
This cartridge can be played with the droid or iPhone! Worked fine on the Droid but if it crashes right away you may not have a good Satellite lock try starting it again.
and a hint having a 2nd GPS could be a plus but not needed
You will have to be close to the starting coords to see the Geocache at the end of the game Special thanks to Ranger Fox who created the code for this Wherigo I just tweaked it so you could play it here
You Can find the cartridge here: http://www.wherigo.com/cartridge/details.aspx?CGUID=be6bd8c6-57d0-4268-8e8d-3c09f539dcde