Farm Crisis

Now the controls are explained better.

I fixed some bugs with the key configuration.

I have created a new level, and now is more hard gain lives and ammunition, making the game not so easy anymore.

The size of the bomb that the player can use have now a lower size, and the animation using the bomb is more realistic.

I fix some bugs with the gun, makig shooting more accurate.

Also, I make the water more visible. Now is more easy see where are water where swim.