Transponder Snail

Each day you can find five Transpoder Snails, randomly scatter around the map locations (including the Extra Isle). After clicking on a Transponder Snail, you'll be asked whether you want to Tweet or not; if you chose no the Snail will disappear for the day. If you say yes, the game will spam an ad on your Twitter account that you linked on its first tweet. The Snails may change locations after a battle. Once you tweet from the fifth one, no more will appear until the "New Day" message rests your daily allowance.

The TS can give some nice rewards, chosen at random from a virtual spinning wheel-like choices of: During some special changes the rewards may be changed.
 * meat: refreshes stamina (by your current max account, likely giving you more then maximum points but stopping stamina regeneration until you go below your max)
 * cola: 2 or 5 bottles
 * Daimyo or Elder Turtles of each of the five color
 * beli: 20,000 or 50,000