The aim of the game is, to throw 5 baskets in 3 minutes with the catapult.
The player can throw as much baskets as he want and also he must calculate the windspeed
which is shown up on the right top.
Positive numbers mean back wind and negative numbers mean front wind.
Before the game begins, the player has the choice to throw 3 balls for a test.
You can control the catapult with the keys + and - !.
