You are about to expierience  how to battle the evil emperor's castle. First you must follow the rules.

1.  First you must click on the cannon.

2. Hold the click down while you move the mouse.

3. Wherever the point is pointing to, that's where the cannon is going to shoot, the longer it is the farther it shoots..

4. Let go of the button and watch it hit the castle, make sure you don't miss!

Let's begin the battle.